617668364 has 6 divisors (see below), whose sum is σ = 1080919644. Its totient is φ = 308834180.

The previous prime is 617668333. The next prime is 617668367. The reversal of 617668364 is 463866716.

It is not an unprimeable number, because it can be changed into a prime (617668367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77208542 + ... + 77208549.

It is an arithmetic number, because the mean of its divisors is an integer number (180153274).

Almost surely, 2^617668364 is an apocalyptic number.

It is an amenable number.

617668364 is a deficient number, since it is larger than the sum of its proper divisors (463251280).

617668364 is a wasteful number, since it uses less digits than its factorization.

617668364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154417095 (or 154417093 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 617668364 is about 24852.9347160451. The cubic root of 617668364 is about 851.6316359652.

The spelling of 617668364 in words is "six hundred seventeen million, six hundred sixty-eight thousand, three hundred sixty-four".