617283949 has 4 divisors (see below), whose sum is σ = 627403420. Its totient is φ = 607164480.

The previous prime is 617283941. The next prime is 617283967. The reversal of 617283949 is 949382716.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 176703849 + 440580100 = 13293^2 + 20990^2 .

It is a cyclic number.

It is not a de Polignac number, because 617283949 - 2³ = 617283941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617283941) 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 3 ways as a sum of consecutive naturals, for example, 5059644 + ... + 5059765.

It is an arithmetic number, because the mean of its divisors is an integer number (156850855).

Almost surely, 2^617283949 is an apocalyptic number.

It is an amenable number.

617283949 is a deficient number, since it is larger than the sum of its proper divisors (10119471).

617283949 is a wasteful number, since it uses less digits than its factorization.

617283949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119470.

The product of its digits is 653184, while the sum is 49.

The square root of 617283949 is about 24845.1997174505. The cubic root of 617283949 is about 851.4549241381.

The spelling of 617283949 in words is "six hundred seventeen million, two hundred eighty-three thousand, nine hundred forty-nine".