649964592 has 30 divisors (see below), whose sum is σ = 1818998532. Its totient is φ = 216654816.

The previous prime is 649964561. The next prime is 649964629. The reversal of 649964592 is 295469946.

It is a happy number.

649964592 is a `hidden beast` number, since 6 + 49 + 9 + 6 + 4 + 592 = 666.

649964592 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2256678 + ... + 2256965.

Almost surely, 2^649964592 is an apocalyptic number.

It is an amenable number.

649964592 is an abundant number, since it is smaller than the sum of its proper divisors (1169033940).

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

649964592 is a wasteful number, since it uses less digits than its factorization.

649964592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513657 (or 4513648 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 649964592 is about 25494.4031504956. The cubic root of 649964592 is about 866.2233759300.

The spelling of 649964592 in words is "six hundred forty-nine million, nine hundred sixty-four thousand, five hundred ninety-two".