16004377 has 4 divisors (see below), whose sum is σ = 16029540. Its totient is φ = 15979216.

The previous prime is 16004369. The next prime is 16004381. The reversal of 16004377 is 77340061.

16004377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9759376 + 6245001 = 3124^2 + 2499^2 .

It is a cyclic number.

It is not a de Polignac number, because 16004377 - 2³ = 16004369 is a prime.

It is a super-2 number, since 2×16004377² = 512280166316258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16004347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11602 + ... + 12907.

It is an arithmetic number, because the mean of its divisors is an integer number (4007385).

Almost surely, 2^16004377 is an apocalyptic number.

It is an amenable number.

16004377 is a deficient number, since it is larger than the sum of its proper divisors (25163).

16004377 is an equidigital number, since it uses as much as digits as its factorization.

16004377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25162.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 16004377 is about 4000.5470875869. The cubic root of 16004377 is about 252.0071856942.

The spelling of 16004377 in words is "sixteen million, four thousand, three hundred seventy-seven".