648537076 has 12 divisors (see below), whose sum is σ = 1238116320. Its totient is φ = 294789560.

The previous prime is 648537031. The next prime is 648537079. The reversal of 648537076 is 670735846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648537079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7369696 + ... + 7369783.

It is an arithmetic number, because the mean of its divisors is an integer number (103176360).

Almost surely, 2^648537076 is an apocalyptic number.

It is an amenable number.

648537076 is a deficient number, since it is larger than the sum of its proper divisors (589579244).

648537076 is a wasteful number, since it uses less digits than its factorization.

648537076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14739494 (or 14739492 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 648537076 is about 25466.3911067116. The cubic root of 648537076 is about 865.5887495078.

The spelling of 648537076 in words is "six hundred forty-eight million, five hundred thirty-seven thousand, seventy-six".