648612976 has 20 divisors (see below), whose sum is σ = 1370932344. Its totient is φ = 294824000.

The previous prime is 648612947. The next prime is 648612983. The reversal of 648612976 is 679216846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842475 + ... + 1842826.

Almost surely, 2^648612976 is an apocalyptic number.

It is an amenable number.

648612976 is an abundant number, since it is smaller than the sum of its proper divisors (722319368).

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

648612976 is a wasteful number, since it uses less digits than its factorization.

648612976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685320 (or 3685314 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 648612976 is about 25467.8812624843. The cubic root of 648612976 is about 865.6225155667.

The spelling of 648612976 in words is "six hundred forty-eight million, six hundred twelve thousand, nine hundred seventy-six".