649704926 has 8 divisors (see below), whose sum is σ = 1049523384. Its totient is φ = 299863800.

The previous prime is 649704907. The next prime is 649704947. The reversal of 649704926 is 629407946.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12494300 + ... + 12494351.

It is an arithmetic number, because the mean of its divisors is an integer number (131190423).

Almost surely, 2^649704926 is an apocalyptic number.

649704926 is a deficient number, since it is larger than the sum of its proper divisors (399818458).

649704926 is a wasteful number, since it uses less digits than its factorization.

649704926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24988666.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 649704926 is about 25489.3100338161. The cubic root of 649704926 is about 866.1080061996.

It can be divided in two parts, 64970 and 4926, that added together give a palindrome (69896).

The spelling of 649704926 in words is "six hundred forty-nine million, seven hundred four thousand, nine hundred twenty-six".