87069760 has 28 divisors (see below), whose sum is σ = 207335628. Its totient is φ = 34827776.

The previous prime is 87069751. The next prime is 87069779. The reversal of 87069760 is 6796078.

It can be written as a sum of positive squares in 2 ways, for example, as 23580736 + 63489024 = 4856^2 + 7968^2 .

It is a super-2 number, since 2×87069760² = 15162286212915200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135727 + ... + 136366.

Almost surely, 2^87069760 is an apocalyptic number.

87069760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87069760 is an abundant number, since it is smaller than the sum of its proper divisors (120265868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87069760 is a wasteful number, since it uses less digits than its factorization.

87069760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272110 (or 272100 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 87069760 is about 9331.1178322857. The cubic root of 87069760 is about 443.2231634338.

The spelling of 87069760 in words is "eighty-seven million, sixty-nine thousand, seven hundred sixty".