617698674 has 12 divisors (see below), whose sum is σ = 1338347166. Its totient is φ = 205899552.

The previous prime is 617698673. The next prime is 617698681. The reversal of 617698674 is 476896716.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 587723049 + 29975625 = 24243^2 + 5475^2 .

It is a super-2 number, since 2×617698674² = 763103303722716552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 617698674.

It is not an unprimeable number, because it can be changed into a prime (617698673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17158279 + ... + 17158314.

Almost surely, 2^617698674 is an apocalyptic number.

617698674 is an abundant number, since it is smaller than the sum of its proper divisors (720648492).

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

617698674 is a wasteful number, since it uses less digits than its factorization.

617698674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34316601 (or 34316598 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 617698674 is about 24853.5444957052. The cubic root of 617698674 is about 851.6455660579.

The spelling of 617698674 in words is "six hundred seventeen million, six hundred ninety-eight thousand, six hundred seventy-four".