8720856662 has 8 divisors (see below), whose sum is σ = 14950040016. Its totient is φ = 3737509992.

The previous prime is 8720856653. The next prime is 8720856671. The reversal of 8720856662 is 2666580278.

It is an interprime number because it is at equal distance from previous prime (8720856653) and next prime (8720856671).

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

It is a self number, because there is not a number n which added to its sum of digits gives 8720856662.

It is a congruent number.

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, 311459153 + ... + 311459180.

It is an arithmetic number, because the mean of its divisors is an integer number (1868755002).

Almost surely, 2^8720856662 is an apocalyptic number.

8720856662 is a deficient number, since it is larger than the sum of its proper divisors (6229183354).

8720856662 is a wasteful number, since it uses less digits than its factorization.

8720856662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622918342.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The square root of 8720856662 is about 93385.5270478247. The cubic root of 8720856662 is about 2058.3523336304.

The spelling of 8720856662 in words is "eight billion, seven hundred twenty million, eight hundred fifty-six thousand, six hundred sixty-two".