87534538 has 16 divisors (see below), whose sum is σ = 161602560. Its totient is φ = 34628976.

The previous prime is 87534529. The next prime is 87534569. The reversal of 87534538 is 83543578.

It is a junction number, because it is equal to n+sod(n) for n = 87534494 and 87534503.

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, 240298 + ... + 240661.

It is an arithmetic number, because the mean of its divisors is an integer number (10100160).

Almost surely, 2^87534538 is an apocalyptic number.

87534538 is a deficient number, since it is larger than the sum of its proper divisors (74068022).

87534538 is a wasteful number, since it uses less digits than its factorization.

87534538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480981.

The product of its digits is 403200, while the sum is 43.

The square root of 87534538 is about 9355.9894185490. The cubic root of 87534538 is about 444.0104054321.

The spelling of 87534538 in words is "eighty-seven million, five hundred thirty-four thousand, five hundred thirty-eight".