87545913 has 32 divisors (see below), whose sum is σ = 146743296. Its totient is φ = 45188928.

The previous prime is 87545897. The next prime is 87545917. The reversal of 87545913 is 31954578.

It is not a de Polignac number, because 87545913 - 2⁴ = 87545897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87545917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9420 + ... + 16242.

It is an arithmetic number, because the mean of its divisors is an integer number (4585728).

Almost surely, 2^87545913 is an apocalyptic number.

It is an amenable number.

87545913 is a deficient number, since it is larger than the sum of its proper divisors (59197383).

87545913 is a wasteful number, since it uses less digits than its factorization.

87545913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6893.

The product of its digits is 151200, while the sum is 42.

The square root of 87545913 is about 9356.5972981635. The cubic root of 87545913 is about 444.0296374584.

The spelling of 87545913 in words is "eighty-seven million, five hundred forty-five thousand, nine hundred thirteen".