16269977 has 4 divisors (see below), whose sum is σ = 16281636. Its totient is φ = 16258320.

The previous prime is 16269961. The next prime is 16269991. The reversal of 16269977 is 77996261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77996261 = 7 ⋅11142323.

It can be written as a sum of positive squares in 2 ways, for example, as 9066121 + 7203856 = 3011^2 + 2684^2 .

It is a cyclic number.

It is not a de Polignac number, because 16269977 - 2⁴ = 16269961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16269917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3398 + ... + 6639.

It is an arithmetic number, because the mean of its divisors is an integer number (4070409).

Almost surely, 2^16269977 is an apocalyptic number.

It is an amenable number.

16269977 is a deficient number, since it is larger than the sum of its proper divisors (11659).

16269977 is a wasteful number, since it uses less digits than its factorization.

16269977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11658.

The product of its digits is 285768, while the sum is 47.

The square root of 16269977 is about 4033.6059549738. The cubic root of 16269977 is about 253.3936027349.

The spelling of 16269977 in words is "sixteen million, two hundred sixty-nine thousand, nine hundred seventy-seven".