617961975 has 48 divisors (see below), whose sum is σ = 1062348672. Its totient is φ = 316690560.

The previous prime is 617961959. The next prime is 617961983. The reversal of 617961975 is 579169716.

It is not a de Polignac number, because 617961975 - 2⁴ = 617961959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 228984 + ... + 231666.

It is an arithmetic number, because the mean of its divisors is an integer number (22132264).

Almost surely, 2^617961975 is an apocalyptic number.

617961975 is a deficient number, since it is larger than the sum of its proper divisors (444386697).

617961975 is a wasteful number, since it uses less digits than its factorization.

617961975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2811 counting only the distinct ones).

The product of its digits is 714420, while the sum is 51.

The square root of 617961975 is about 24858.8409826363. The cubic root of 617961975 is about 851.7665566987.

The spelling of 617961975 in words is "six hundred seventeen million, nine hundred sixty-one thousand, nine hundred seventy-five".