87066814 has 4 divisors (see below), whose sum is σ = 130600224. Its totient is φ = 43533406.

The previous prime is 87066773. The next prime is 87066841. The reversal of 87066814 is 41866078.

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

It is a super-2 number, since 2×87066814² = 15161260200221192, which contains 22 as substring.

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, 21766702 + ... + 21766705.

It is an arithmetic number, because the mean of its divisors is an integer number (32650056).

Almost surely, 2^87066814 is an apocalyptic number.

87066814 is a deficient number, since it is larger than the sum of its proper divisors (43533410).

87066814 is a wasteful number, since it uses less digits than its factorization.

87066814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43533409.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 87066814 is about 9330.9599720500. The cubic root of 87066814 is about 443.2181645678.

The spelling of 87066814 in words is "eighty-seven million, sixty-six thousand, eight hundred fourteen".