648075772 has 12 divisors (see below), whose sum is σ = 1137829000. Its totient is φ = 322981776.

The previous prime is 648075767. The next prime is 648075803. The reversal of 648075772 is 277570846.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 262647 + ... + 265102.

Almost surely, 2^648075772 is an apocalyptic number.

It is an amenable number.

648075772 is a deficient number, since it is larger than the sum of its proper divisors (489753228).

648075772 is a wasteful number, since it uses less digits than its factorization.

648075772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528060 (or 528058 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 46.

The square root of 648075772 is about 25457.3323818502. The cubic root of 648075772 is about 865.3834699237.

The spelling of 648075772 in words is "six hundred forty-eight million, seventy-five thousand, seven hundred seventy-two".