649244715 has 32 divisors (see below), whose sum is σ = 1188295680. Its totient is φ = 296521344.

The previous prime is 649244677. The next prime is 649244737. The reversal of 649244715 is 517442946.

It is not a de Polignac number, because 649244715 - 2¹⁰ = 649243691 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147882 + ... + 152208.

It is an arithmetic number, because the mean of its divisors is an integer number (37134240).

Almost surely, 2^649244715 is an apocalyptic number.

649244715 is a deficient number, since it is larger than the sum of its proper divisors (539050965).

649244715 is a wasteful number, since it uses less digits than its factorization.

649244715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771.

The product of its digits is 241920, while the sum is 42.

The square root of 649244715 is about 25480.2809050450. The cubic root of 649244715 is about 865.9034586860.

The spelling of 649244715 in words is "six hundred forty-nine million, two hundred forty-four thousand, seven hundred fifteen".