649948748 has 6 divisors (see below), whose sum is σ = 1137410316. Its totient is φ = 324974372.

The previous prime is 649948729. The next prime is 649948753. The reversal of 649948748 is 847849946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81243590 + ... + 81243597.

It is an arithmetic number, because the mean of its divisors is an integer number (189568386).

Almost surely, 2^649948748 is an apocalyptic number.

It is an amenable number.

649948748 is a deficient number, since it is larger than the sum of its proper divisors (487461568).

649948748 is a wasteful number, since it uses less digits than its factorization.

649948748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162487191 (or 162487189 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 59.

The square root of 649948748 is about 25494.0924137338. The cubic root of 649948748 is about 866.2163373134.

The spelling of 649948748 in words is "six hundred forty-nine million, nine hundred forty-eight thousand, seven hundred forty-eight".