87406694 has 4 divisors (see below), whose sum is σ = 131110044. Its totient is φ = 43703346.

The previous prime is 87406687. The next prime is 87406721. The reversal of 87406694 is 49660478.

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

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, 21851672 + ... + 21851675.

It is an arithmetic number, because the mean of its divisors is an integer number (32777511).

Almost surely, 2^87406694 is an apocalyptic number.

87406694 is a deficient number, since it is larger than the sum of its proper divisors (43703350).

87406694 is a wasteful number, since it uses less digits than its factorization.

87406694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43703349.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 87406694 is about 9349.1547211499. The cubic root of 87406694 is about 443.7941413737.

The spelling of 87406694 in words is "eighty-seven million, four hundred six thousand, six hundred ninety-four".