617772672 has 96 divisors (see below), whose sum is σ = 1939354560. Its totient is φ = 187200000.

The previous prime is 617772667. The next prime is 617772677. The reversal of 617772672 is 276277716.

617772672 is a `hidden beast` number, since 617 + 7 + 7 + 26 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (617772667) and next prime (617772677).

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (617772677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11704 + ... + 37047.

It is an arithmetic number, because the mean of its divisors is an integer number (20201610).

Almost surely, 2^617772672 is an apocalyptic number.

It is an amenable number.

617772672 is an abundant number, since it is smaller than the sum of its proper divisors (1321581888).

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

617772672 is a wasteful number, since it uses less digits than its factorization.

617772672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48782 (or 48767 counting only the distinct ones).

The product of its digits is 345744, while the sum is 45.

The square root of 617772672 is about 24855.0331321445. The cubic root of 617772672 is about 851.6795726887.

The spelling of 617772672 in words is "six hundred seventeen million, seven hundred seventy-two thousand, six hundred seventy-two".