648793722 has 16 divisors (see below), whose sum is σ = 1365881760. Its totient is φ = 204882192.

The previous prime is 648793711. The next prime is 648793889. The reversal of 648793722 is 227397846.

It is a super-2 number, since 2×648793722² = 841866587413226568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2845473 + ... + 2845700.

It is an arithmetic number, because the mean of its divisors is an integer number (85367610).

Almost surely, 2^648793722 is an apocalyptic number.

648793722 is an abundant number, since it is smaller than the sum of its proper divisors (717088038).

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

648793722 is a wasteful number, since it uses less digits than its factorization.

648793722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5691197.

The product of its digits is 1016064, while the sum is 48.

The square root of 648793722 is about 25471.4295240766. The cubic root of 648793722 is about 865.7029144497.

The spelling of 648793722 in words is "six hundred forty-eight million, seven hundred ninety-three thousand, seven hundred twenty-two".