649750968 has 48 divisors (see below), whose sum is σ = 1766484720. Its totient is φ = 215753856.

The previous prime is 649750957. The next prime is 649750993. The reversal of 649750968 is 869057946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1780 + ... + 36092.

It is an arithmetic number, because the mean of its divisors is an integer number (36801765).

Almost surely, 2^649750968 is an apocalyptic number.

It is an amenable number.

649750968 is an abundant number, since it is smaller than the sum of its proper divisors (1116733752).

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

649750968 is a wasteful number, since it uses less digits than its factorization.

649750968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34588 (or 34581 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 649750968 is about 25490.2131807484. The cubic root of 649750968 is about 866.1284649244.

The spelling of 649750968 in words is "six hundred forty-nine million, seven hundred fifty thousand, nine hundred sixty-eight".