617122494 has 48 divisors (see below), whose sum is σ = 1386871200. Its totient is φ = 198088128.

The previous prime is 617122481. The next prime is 617122501. The reversal of 617122494 is 494221716.

It is a happy number.

617122494 is a `hidden beast` number, since 617 + 12 + 24 + 9 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227812 + ... + 230504.

It is an arithmetic number, because the mean of its divisors is an integer number (28893150).

Almost surely, 2^617122494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 617122494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693435600).

617122494 is an abundant number, since it is smaller than the sum of its proper divisors (769748706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

617122494 is a wasteful number, since it uses less digits than its factorization.

617122494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169 (or 3166 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 617122494 is about 24841.9502857566. The cubic root of 617122494 is about 851.3806829712.

The spelling of 617122494 in words is "six hundred seventeen million, one hundred twenty-two thousand, four hundred ninety-four".