87632939 has 8 divisors (see below), whose sum is σ = 90590208. Its totient is φ = 84683880.

The previous prime is 87632929. The next prime is 87632971. The reversal of 87632939 is 93923678.

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 87632939 - 2⁸ = 87632683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87632893 and 87632902.

It is not an unprimeable number, because it can be changed into a prime (87632929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25904 + ... + 29090.

It is an arithmetic number, because the mean of its divisors is an integer number (11323776).

Almost surely, 2^87632939 is an apocalyptic number.

87632939 is a deficient number, since it is larger than the sum of its proper divisors (2957269).

87632939 is a wasteful number, since it uses less digits than its factorization.

87632939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105.

The product of its digits is 489888, while the sum is 47.

The square root of 87632939 is about 9361.2466584318. The cubic root of 87632939 is about 444.1767196189.

The spelling of 87632939 in words is "eighty-seven million, six hundred thirty-two thousand, nine hundred thirty-nine".