649907324 has 12 divisors (see below), whose sum is σ = 1240732248. Its totient is φ = 295412400.

The previous prime is 649907317. The next prime is 649907327. The reversal of 649907324 is 423709946.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 14770621 = 649907324 / (6 + 4 + 9 + 9 + 0 + 7 + 3 + 2 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649907327) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 7385267 + ... + 7385354.

It is an arithmetic number, because the mean of its divisors is an integer number (103394354).

Almost surely, 2^649907324 is an apocalyptic number.

It is an amenable number.

649907324 is a deficient number, since it is larger than the sum of its proper divisors (590824924).

649907324 is a wasteful number, since it uses less digits than its factorization.

649907324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14770636 (or 14770634 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 649907324 is about 25493.2799772803. The cubic root of 649907324 is about 866.1979343712.

The spelling of 649907324 in words is "six hundred forty-nine million, nine hundred seven thousand, three hundred twenty-four".