648422696 has 16 divisors (see below), whose sum is σ = 1218606900. Its totient is φ = 323460864.

The previous prime is 648422689. The next prime is 648422699. The reversal of 648422696 is 696224846.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 505620196 + 142802500 = 22486^2 + 11950^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 648422696.

It is not an unprimeable number, because it can be changed into a prime (648422699) 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, 90131 + ... + 97058.

Almost surely, 2^648422696 is an apocalyptic number.

It is an amenable number.

648422696 is a deficient number, since it is larger than the sum of its proper divisors (570184204).

648422696 is a wasteful number, since it uses less digits than its factorization.

648422696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187628 (or 187624 counting only the distinct ones).

The product of its digits is 995328, while the sum is 47.

The square root of 648422696 is about 25464.1453027585. The cubic root of 648422696 is about 865.5378596585.

The spelling of 648422696 in words is "six hundred forty-eight million, four hundred twenty-two thousand, six hundred ninety-six".