648067972 has 12 divisors (see below), whose sum is σ = 1134745920. Its totient is φ = 323854856.

The previous prime is 648067969. The next prime is 648067997. The reversal of 648067972 is 279760846.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36472 + ... + 51247.

It is an arithmetic number, because the mean of its divisors is an integer number (94562160).

Almost surely, 2^648067972 is an apocalyptic number.

It is an amenable number.

648067972 is a deficient number, since it is larger than the sum of its proper divisors (486677948).

648067972 is a wasteful number, since it uses less digits than its factorization.

648067972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89570 (or 89568 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 648067972 is about 25457.1791838766. The cubic root of 648067972 is about 865.3799980981.

The spelling of 648067972 in words is "six hundred forty-eight million, sixty-seven thousand, nine hundred seventy-two".