617654379 has 8 divisors (see below), whose sum is σ = 824008192. Its totient is φ = 411535080.

The previous prime is 617654371. The next prime is 617654399. The reversal of 617654379 is 973456716.

It is a happy number.

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

It is not a de Polignac number, because 617654379 - 2³ = 617654371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617654371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52387 + ... + 63084.

It is an arithmetic number, because the mean of its divisors is an integer number (103001024).

Almost surely, 2^617654379 is an apocalyptic number.

617654379 is a deficient number, since it is larger than the sum of its proper divisors (206353813).

617654379 is a wasteful number, since it uses less digits than its factorization.

617654379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117257.

The product of its digits is 952560, while the sum is 48.

The square root of 617654379 is about 24852.6533593498. The cubic root of 617654379 is about 851.6252084824.

The spelling of 617654379 in words is "six hundred seventeen million, six hundred fifty-four thousand, three hundred seventy-nine".