16631087 has 6 divisors (see below), whose sum is σ = 18280584. Its totient is φ = 15119060.

The previous prime is 16631081. The next prime is 16631089. The reversal of 16631087 is 78013661.

It is not a de Polignac number, because 16631087 - 2¹⁶ = 16565551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16631081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68603 + ... + 68844.

It is an arithmetic number, because the mean of its divisors is an integer number (3046764).

Almost surely, 2^16631087 is an apocalyptic number.

16631087 is a deficient number, since it is larger than the sum of its proper divisors (1649497).

16631087 is a wasteful number, since it uses less digits than its factorization.

16631087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137469 (or 137458 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 16631087 is about 4078.1229750953. The cubic root of 16631087 is about 255.2545810723.

The spelling of 16631087 in words is "sixteen million, six hundred thirty-one thousand, eighty-seven".