87712906 has 8 divisors (see below), whose sum is σ = 133154784. Its totient is φ = 43327980.

The previous prime is 87712897. The next prime is 87712921. The reversal of 87712906 is 60921778.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264030 + ... + 264361.

It is an arithmetic number, because the mean of its divisors is an integer number (16644348).

Almost surely, 2^87712906 is an apocalyptic number.

87712906 is a deficient number, since it is larger than the sum of its proper divisors (45441878).

87712906 is a wasteful number, since it uses less digits than its factorization.

87712906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528476.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 87712906 is about 9365.5168570667. The cubic root of 87712906 is about 444.3117855789.

The spelling of 87712906 in words is "eighty-seven million, seven hundred twelve thousand, nine hundred six".