87806706 has 32 divisors (see below), whose sum is σ = 189547008. Its totient is φ = 26956800.

The previous prime is 87806689. The next prime is 87806713. The reversal of 87806706 is 60760878.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44031 + ... + 45981.

It is an arithmetic number, because the mean of its divisors is an integer number (5923344).

Almost surely, 2^87806706 is an apocalyptic number.

87806706 is an abundant number, since it is smaller than the sum of its proper divisors (101740302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87806706 is a wasteful number, since it uses less digits than its factorization.

87806706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 87806706 is about 9370.5232511317. The cubic root of 87806706 is about 444.4701111890.

The spelling of 87806706 in words is "eighty-seven million, eight hundred six thousand, seven hundred six".