87813536 has 24 divisors (see below), whose sum is σ = 173093760. Its totient is φ = 43853248.

The previous prime is 87813533. The next prime is 87813553. The reversal of 87813536 is 63531878.

It is a super-2 number, since 2×87813536² = 15422434209646592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87813493 and 87813502.

It is not an unprimeable number, because it can be changed into a prime (87813533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45095 + ... + 47001.

It is an arithmetic number, because the mean of its divisors is an integer number (7212240).

Almost surely, 2^87813536 is an apocalyptic number.

It is an amenable number.

87813536 is a deficient number, since it is larger than the sum of its proper divisors (85280224).

87813536 is a wasteful number, since it uses less digits than its factorization.

87813536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356 (or 3348 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 87813536 is about 9370.8876847394. The cubic root of 87813536 is about 444.4816351841.

The spelling of 87813536 in words is "eighty-seven million, eight hundred thirteen thousand, five hundred thirty-six".