87476631 has 8 divisors (see below), whose sum is σ = 127238784. Its totient is φ = 53016120.

The previous prime is 87476617. The next prime is 87476633. The reversal of 87476631 is 13667478.

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

It is not a de Polignac number, because 87476631 - 2¹⁰ = 87475607 is a prime.

It is a super-2 number, since 2×87476631² = 15304321942220322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87476633) 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, 1325371 + ... + 1325436.

It is an arithmetic number, because the mean of its divisors is an integer number (15904848).

Almost surely, 2^87476631 is an apocalyptic number.

87476631 is a deficient number, since it is larger than the sum of its proper divisors (39762153).

87476631 is a wasteful number, since it uses less digits than its factorization.

87476631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650821.

The product of its digits is 169344, while the sum is 42.

The square root of 87476631 is about 9352.8942579289. The cubic root of 87476631 is about 443.9124746311.

The spelling of 87476631 in words is "eighty-seven million, four hundred seventy-six thousand, six hundred thirty-one".