87963631 has 8 divisors (see below), whose sum is σ = 102234240. Its totient is φ = 74119128.

The previous prime is 87963571. The next prime is 87963637. The reversal of 87963631 is 13636978.

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 87963631 - 2¹⁷ = 87832559 is a prime.

It is a super-2 number, since 2×87963631² = 15475200757408322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87963637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106081 + ... + 106906.

It is an arithmetic number, because the mean of its divisors is an integer number (12779280).

Almost surely, 2^87963631 is an apocalyptic number.

87963631 is a deficient number, since it is larger than the sum of its proper divisors (14270609).

87963631 is a wasteful number, since it uses less digits than its factorization.

87963631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213053.

The product of its digits is 163296, while the sum is 43.

The square root of 87963631 is about 9378.8928451070. The cubic root of 87963631 is about 444.7347339645.

The spelling of 87963631 in words is "eighty-seven million, nine hundred sixty-three thousand, six hundred thirty-one".