87604131 has 8 divisors (see below), whose sum is σ = 118450944. Its totient is φ = 57580040.

The previous prime is 87604091. The next prime is 87604147. The reversal of 87604131 is 13140678.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 87604131 - 2¹⁹ = 87079843 is a prime.

It is a super-2 number, since 2×87604131² = 15348967536530322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87604151) 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, 205431 + ... + 205856.

It is an arithmetic number, because the mean of its divisors is an integer number (14806368).

Almost surely, 2^87604131 is an apocalyptic number.

87604131 is a deficient number, since it is larger than the sum of its proper divisors (30846813).

87604131 is a wasteful number, since it uses less digits than its factorization.

87604131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411361.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 87604131 is about 9359.7078480047. The cubic root of 87604131 is about 444.1280421638.

The spelling of 87604131 in words is "eighty-seven million, six hundred four thousand, one hundred thirty-one".