649350715 has 16 divisors (see below), whose sum is σ = 847478016. Its totient is φ = 474768000.

The previous prime is 649350679. The next prime is 649350721. The reversal of 649350715 is 517053946.

It is not a de Polignac number, because 649350715 - 2²⁵ = 615796283 is a prime.

It is a super-2 number, since 2×649350715² = 843312702142022450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42891 + ... + 56020.

It is an arithmetic number, because the mean of its divisors is an integer number (52967376).

Almost surely, 2^649350715 is an apocalyptic number.

649350715 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

649350715 is a deficient number, since it is larger than the sum of its proper divisors (198127301).

649350715 is a wasteful number, since it uses less digits than its factorization.

649350715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99030.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 649350715 is about 25482.3608600145. The cubic root of 649350715 is about 865.9505805030.

The spelling of 649350715 in words is "six hundred forty-nine million, three hundred fifty thousand, seven hundred fifteen".