87091532 has 12 divisors (see below), whose sum is σ = 166265736. Its totient is φ = 39587040.

The previous prime is 87091531. The next prime is 87091559. The reversal of 87091532 is 23519078.

It is a super-2 number, since 2×87091532² = 15169869892214048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87091492 and 87091501.

It is not an unprimeable number, because it can be changed into a prime (87091531) 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, 989633 + ... + 989720.

It is an arithmetic number, because the mean of its divisors is an integer number (13855478).

Almost surely, 2^87091532 is an apocalyptic number.

It is an amenable number.

87091532 is a deficient number, since it is larger than the sum of its proper divisors (79174204).

87091532 is a wasteful number, since it uses less digits than its factorization.

87091532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979368 (or 1979366 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 87091532 is about 9332.2843934377. The cubic root of 87091532 is about 443.2601033560.

The spelling of 87091532 in words is "eighty-seven million, ninety-one thousand, five hundred thirty-two".