648875892 has 48 divisors (see below), whose sum is σ = 1732534272. Its totient is φ = 185157600.

The previous prime is 648875879. The next prime is 648875939. The reversal of 648875892 is 298578846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68017 + ... + 76967.

It is an arithmetic number, because the mean of its divisors is an integer number (36094464).

Almost surely, 2^648875892 is an apocalyptic number.

It is an amenable number.

648875892 is an abundant number, since it is smaller than the sum of its proper divisors (1083658380).

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

648875892 is a wasteful number, since it uses less digits than its factorization.

648875892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9828 (or 9826 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 57.

The square root of 648875892 is about 25473.0424566835. The cubic root of 648875892 is about 865.7394601207.

The spelling of 648875892 in words is "six hundred forty-eight million, eight hundred seventy-five thousand, eight hundred ninety-two".