87538923 has 6 divisors (see below), whose sum is σ = 126445124. Its totient is φ = 58359276.

The previous prime is 87538889. The next prime is 87538931. The reversal of 87538923 is 32983578.

It is not a de Polignac number, because 87538923 - 2⁶ = 87538859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87538963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4863265 + ... + 4863282.

Almost surely, 2^87538923 is an apocalyptic number.

87538923 is a deficient number, since it is larger than the sum of its proper divisors (38906201).

87538923 is a wasteful number, since it uses less digits than its factorization.

87538923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726553 (or 9726550 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 87538923 is about 9356.2237574782. The cubic root of 87538923 is about 444.0178194699.

The spelling of 87538923 in words is "eighty-seven million, five hundred thirty-eight thousand, nine hundred twenty-three".