87024531 has 12 divisors (see below), whose sum is σ = 127540616. Its totient is φ = 52741920.

The previous prime is 87024473. The next prime is 87024593. The reversal of 87024531 is 13542078.

It is not a de Polignac number, because 87024531 - 2⁷ = 87024403 is a prime.

It is a super-2 number, since 2×87024531² = 15146537991539922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87026531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119506 + ... + 120231.

Almost surely, 2^87024531 is an apocalyptic number.

87024531 is a deficient number, since it is larger than the sum of its proper divisors (40516085).

87024531 is a wasteful number, since it uses less digits than its factorization.

87024531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239762 (or 239751 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 87024531 is about 9328.6939600353. The cubic root of 87024531 is about 443.1464050101.

The spelling of 87024531 in words is "eighty-seven million, twenty-four thousand, five hundred thirty-one".