648592938 has 24 divisors (see below), whose sum is σ = 1606039968. Its totient is φ = 185312232.

The previous prime is 648592927. The next prime is 648592963. The reversal of 648592938 is 839295846.

648592938 is a `hidden beast` number, since 6 + 48 + 592 + 9 + 3 + 8 = 666.

648592938 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 11 ways as a sum of consecutive naturals, for example, 2573656 + ... + 2573907.

It is an arithmetic number, because the mean of its divisors is an integer number (66918332).

Almost surely, 2^648592938 is an apocalyptic number.

648592938 is an abundant number, since it is smaller than the sum of its proper divisors (957447030).

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

648592938 is a wasteful number, since it uses less digits than its factorization.

648592938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147578 (or 5147575 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 648592938 is about 25467.4878619781. The cubic root of 648592938 is about 865.6136014052.

The spelling of 648592938 in words is "six hundred forty-eight million, five hundred ninety-two thousand, nine hundred thirty-eight".