617395045 has 8 divisors (see below), whose sum is σ = 744636024. Its totient is φ = 491408064.

The previous prime is 617395019. The next prime is 617395067. The reversal of 617395045 is 540593716.

617395045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 159820164 + 457574881 = 12642^2 + 21391^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 617395045 - 2⁵ = 617395013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 617394989 and 617395007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312414 + ... + 314383.

It is an arithmetic number, because the mean of its divisors is an integer number (93079503).

Almost surely, 2^617395045 is an apocalyptic number.

It is an amenable number.

617395045 is a deficient number, since it is larger than the sum of its proper divisors (127240979).

617395045 is a wasteful number, since it uses less digits than its factorization.

617395045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626999.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 617395045 is about 24847.4353807390. The cubic root of 617395045 is about 851.5060014217.

The spelling of 617395045 in words is "six hundred seventeen million, three hundred ninety-five thousand, forty-five".