16004087 has 8 divisors (see below), whose sum is σ = 17534352. Its totient is φ = 14486400.

The previous prime is 16004059. The next prime is 16004101. The reversal of 16004087 is 78040061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16004087 is a prime.

It is a super-2 number, since 2×16004087² = 512261601407138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16004047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368 + ... + 5669.

It is an arithmetic number, because the mean of its divisors is an integer number (2191794).

Almost surely, 2^16004087 is an apocalyptic number.

16004087 is a deficient number, since it is larger than the sum of its proper divisors (1530265).

16004087 is a wasteful number, since it uses less digits than its factorization.

16004087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6289.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 16004087 is about 4000.5108423800. The cubic root of 16004087 is about 252.0056635579.

The spelling of 16004087 in words is "sixteen million, four thousand, eighty-seven".