674597826 has 96 divisors (see below), whose sum is σ = 1736242560. Its totient is φ = 185213952.

The previous prime is 674597821. The next prime is 674597857. The reversal of 674597826 is 628795476.

It is not an unprimeable number, because it can be changed into a prime (674597821) 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 47 ways as a sum of consecutive naturals, for example, 1289601 + ... + 1290123.

It is an arithmetic number, because the mean of its divisors is an integer number (18085860).

Almost surely, 2^674597826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674597826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (868121280).

674597826 is an abundant number, since it is smaller than the sum of its proper divisors (1061644734).

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

674597826 is a wasteful number, since it uses less digits than its factorization.

674597826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 917 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 674597826 is about 25973.0211180756. The cubic root of 674597826 is about 877.0310699766.

The spelling of 674597826 in words is "six hundred seventy-four million, five hundred ninety-seven thousand, eight hundred twenty-six".