613993974 has 32 divisors (see below), whose sum is σ = 1385821440. Its totient is φ = 179642400.

The previous prime is 613993969. The next prime is 613994011. The reversal of 613993974 is 479399316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158482 + ... + 162309.

It is an arithmetic number, because the mean of its divisors is an integer number (43306920).

Almost surely, 2^613993974 is an apocalyptic number.

613993974 is an abundant number, since it is smaller than the sum of its proper divisors (771827466).

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

613993974 is a wasteful number, since it uses less digits than its factorization.

613993974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320836.

The product of its digits is 1102248, while the sum is 51.

The square root of 613993974 is about 24778.9017916452. The cubic root of 613993974 is about 849.9395454120.

The spelling of 613993974 in words is "six hundred thirteen million, nine hundred ninety-three thousand, nine hundred seventy-four".