648922926 has 16 divisors (see below), whose sum is σ = 1298102400. Its totient is φ = 216264888.

The previous prime is 648922913. The next prime is 648922961. The reversal of 648922926 is 629229846.

It is a happy number.

It is a super-2 number, since 2×648922926² = 842201927776802952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42735 + ... + 55893.

It is an arithmetic number, because the mean of its divisors is an integer number (81131400).

Almost surely, 2^648922926 is an apocalyptic number.

648922926 is an abundant number, since it is smaller than the sum of its proper divisors (649179474).

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

648922926 is a wasteful number, since it uses less digits than its factorization.

648922926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21383.

The product of its digits is 746496, while the sum is 48.

The square root of 648922926 is about 25473.9656512291. The cubic root of 648922926 is about 865.7603774263.

The spelling of 648922926 in words is "six hundred forty-eight million, nine hundred twenty-two thousand, nine hundred twenty-six".