16380877 has 4 divisors (see below), whose sum is σ = 17344476. Its totient is φ = 15417280.

The previous prime is 16380857. The next prime is 16380901. The reversal of 16380877 is 77808361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77808361 = 947 ⋅82163.

It can be written as a sum of positive squares in 2 ways, for example, as 8462281 + 7918596 = 2909^2 + 2814^2 .

It is a cyclic number.

It is not a de Polignac number, because 16380877 - 2¹⁵ = 16348109 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16380857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481774 + ... + 481807.

It is an arithmetic number, because the mean of its divisors is an integer number (4336119).

Almost surely, 2^16380877 is an apocalyptic number.

16380877 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16380877 is a deficient number, since it is larger than the sum of its proper divisors (963599).

16380877 is an equidigital number, since it uses as much as digits as its factorization.

16380877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963598.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 16380877 is about 4047.3296134612. The cubic root of 16380877 is about 253.9680297456.

The spelling of 16380877 in words is "sixteen million, three hundred eighty thousand, eight hundred seventy-seven".