649066698 has 48 divisors (see below), whose sum is σ = 1701760320. Its totient is φ = 174538368.

The previous prime is 649066679. The next prime is 649066711. The reversal of 649066698 is 896660946.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149368 + ... + 153651.

It is an arithmetic number, because the mean of its divisors is an integer number (35453340).

Almost surely, 2^649066698 is an apocalyptic number.

649066698 is an abundant number, since it is smaller than the sum of its proper divisors (1052693622).

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

649066698 is a wasteful number, since it uses less digits than its factorization.

649066698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303051 (or 303048 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The square root of 649066698 is about 25476.7874348396. The cubic root of 649066698 is about 865.8243104989.

The spelling of 649066698 in words is "six hundred forty-nine million, sixty-six thousand, six hundred ninety-eight".