87091310 has 16 divisors (see below), whose sum is σ = 156888576. Its totient is φ = 34808928.

The previous prime is 87091309. The next prime is 87091313. The reversal of 87091310 is 1319078.

It is a super-2 number, since 2×87091310² = 15169792555032200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87091313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14012 + ... + 19248.

It is an arithmetic number, because the mean of its divisors is an integer number (9805536).

Almost surely, 2^87091310 is an apocalyptic number.

87091310 is a deficient number, since it is larger than the sum of its proper divisors (69797266).

87091310 is a wasteful number, since it uses less digits than its factorization.

87091310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6907.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 87091310 is about 9332.2724992362. The cubic root of 87091310 is about 443.2597267261.

The spelling of 87091310 in words is "eighty-seven million, ninety-one thousand, three hundred ten".