87072385 has 16 divisors (see below), whose sum is σ = 110854656. Its totient is φ = 65429248.

The previous prime is 87072373. The next prime is 87072407. The reversal of 87072385 is 58327078.

It is a cyclic number.

It is not a de Polignac number, because 87072385 - 2⁵ = 87072353 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72762 + ... + 73948.

It is an arithmetic number, because the mean of its divisors is an integer number (6928416).

Almost surely, 2^87072385 is an apocalyptic number.

87072385 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

87072385 is a deficient number, since it is larger than the sum of its proper divisors (23782271).

87072385 is a wasteful number, since it uses less digits than its factorization.

87072385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 87072385 is about 9331.2584896144. The cubic root of 87072385 is about 443.2276175217.

The spelling of 87072385 in words is "eighty-seven million, seventy-two thousand, three hundred eighty-five".