649670794 has 8 divisors (see below), whose sum is σ = 974658528. Its totient is φ = 324784620.

The previous prime is 649670773. The next prime is 649670821. The reversal of 649670794 is 497076946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 6622 + ... + 36649.

It is an arithmetic number, because the mean of its divisors is an integer number (121832316).

Almost surely, 2^649670794 is an apocalyptic number.

649670794 is a deficient number, since it is larger than the sum of its proper divisors (324987734).

649670794 is a wasteful number, since it uses less digits than its factorization.

649670794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50780.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The square root of 649670794 is about 25488.6404894416. The cubic root of 649670794 is about 866.0928390496.

The spelling of 649670794 in words is "six hundred forty-nine million, six hundred seventy thousand, seven hundred ninety-four".