87256324 has 12 divisors (see below), whose sum is σ = 154211148. Its totient is φ = 43196000.

The previous prime is 87256321. The next prime is 87256327. The reversal of 87256324 is 42365278.

It is an interprime number because it is at equal distance from previous prime (87256321) and next prime (87256327).

It can be written as a sum of positive squares in 2 ways, for example, as 74511424 + 12744900 = 8632^2 + 3570^2 .

It is a super-2 number, since 2×87256324² = 15227332155985952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87256321) 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, 107587 + ... + 108394.

It is an arithmetic number, because the mean of its divisors is an integer number (12850929).

Almost surely, 2^87256324 is an apocalyptic number.

It is an amenable number.

87256324 is a deficient number, since it is larger than the sum of its proper divisors (66954824).

87256324 is a wasteful number, since it uses less digits than its factorization.

87256324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216086 (or 216084 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 87256324 is about 9341.1093559598. The cubic root of 87256324 is about 443.5395017239.

The spelling of 87256324 in words is "eighty-seven million, two hundred fifty-six thousand, three hundred twenty-four".