649386895 has 8 divisors (see below), whose sum is σ = 779947056. Its totient is φ = 519054336.

The previous prime is 649386877. The next prime is 649386917. The reversal of 649386895 is 598683946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 649386895 - 2⁷ = 649386767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50557 + ... + 62086.

It is an arithmetic number, because the mean of its divisors is an integer number (97493382).

Almost surely, 2^649386895 is an apocalyptic number.

649386895 is a deficient number, since it is larger than the sum of its proper divisors (130560161).

649386895 is a wasteful number, since it uses less digits than its factorization.

649386895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113801.

The product of its digits is 11197440, while the sum is 58.

The square root of 649386895 is about 25483.0707529528. The cubic root of 649386895 is about 865.9666629832.

The spelling of 649386895 in words is "six hundred forty-nine million, three hundred eighty-six thousand, eight hundred ninety-five".