87011534 has 4 divisors (see below), whose sum is σ = 130517304. Its totient is φ = 43505766.

The previous prime is 87011521. The next prime is 87011543. The reversal of 87011534 is 43511078.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 87011497 and 87011506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21752882 + ... + 21752885.

It is an arithmetic number, because the mean of its divisors is an integer number (32629326).

Almost surely, 2^87011534 is an apocalyptic number.

87011534 is a deficient number, since it is larger than the sum of its proper divisors (43505770).

87011534 is a wasteful number, since it uses less digits than its factorization.

87011534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43505769.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 87011534 is about 9327.9973198967. The cubic root of 87011534 is about 443.1243427996.

The spelling of 87011534 in words is "eighty-seven million, eleven thousand, five hundred thirty-four".