648937108 has 12 divisors (see below), whose sum is σ = 1135929312. Its totient is φ = 324385880.

The previous prime is 648937033. The next prime is 648937169. The reversal of 648937108 is 801739846.

It is a happy number.

It is a super-2 number, since 2×648937108² = 842238740278807328, which contains 22 as substring.

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, 910 + ... + 36037.

It is an arithmetic number, because the mean of its divisors is an integer number (94660776).

Almost surely, 2^648937108 is an apocalyptic number.

It is an amenable number.

648937108 is a deficient number, since it is larger than the sum of its proper divisors (486992204).

648937108 is a wasteful number, since it uses less digits than its factorization.

648937108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41342 (or 41340 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 648937108 is about 25474.2440123353. The cubic root of 648937108 is about 865.7666843510.

The spelling of 648937108 in words is "six hundred forty-eight million, nine hundred thirty-seven thousand, one hundred eight".