87075231 has 16 divisors (see below), whose sum is σ = 117936480. Its totient is φ = 57139200.

The previous prime is 87075229. The next prime is 87075293. The reversal of 87075231 is 13257078.

It is not a de Polignac number, because 87075231 - 2¹ = 87075229 is a prime.

It is a super-2 number, since 2×87075231² = 15164191707406722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87075192 and 87075201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87075221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57735 + ... + 59223.

It is an arithmetic number, because the mean of its divisors is an integer number (7371030).

Almost surely, 2^87075231 is an apocalyptic number.

87075231 is a deficient number, since it is larger than the sum of its proper divisors (30861249).

87075231 is a wasteful number, since it uses less digits than its factorization.

87075231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 87075231 is about 9331.4109865550. The cubic root of 87075231 is about 443.2324465004.

The spelling of 87075231 in words is "eighty-seven million, seventy-five thousand, two hundred thirty-one".