87953905 has 8 divisors (see below), whose sum is σ = 113663592. Its totient is φ = 64950528.

The previous prime is 87953867. The next prime is 87953911. The reversal of 87953905 is 50935978.

It can be written as a sum of positive squares in 4 ways, for example, as 194481 + 87759424 = 441^2 + 9368^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87953905 - 2⁷ = 87953777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676504 + ... + 676633.

It is an arithmetic number, because the mean of its divisors is an integer number (14207949).

Almost surely, 2^87953905 is an apocalyptic number.

It is an amenable number.

87953905 is a deficient number, since it is larger than the sum of its proper divisors (25709687).

87953905 is a wasteful number, since it uses less digits than its factorization.

87953905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353155.

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 87953905 is about 9378.3743260759. The cubic root of 87953905 is about 444.7183421542.

The spelling of 87953905 in words is "eighty-seven million, nine hundred fifty-three thousand, nine hundred five".