649703900 has 36 divisors (see below), whose sum is σ = 1427721120. Its totient is φ = 256588800.

The previous prime is 649703897. The next prime is 649703903. The reversal of 649703900 is 9307946.

It is an interprime number because it is at equal distance from previous prime (649703897) and next prime (649703903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649703903) 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 11 ways as a sum of consecutive naturals, for example, 33221 + ... + 49020.

It is an arithmetic number, because the mean of its divisors is an integer number (39658920).

Almost surely, 2^649703900 is an apocalyptic number.

It is an amenable number.

649703900 is an abundant number, since it is smaller than the sum of its proper divisors (778017220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649703900 is a wasteful number, since it uses less digits than its factorization.

649703900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82334 (or 82327 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 649703900 is about 25489.2899077240. The cubic root of 649703900 is about 866.1075502863.

The spelling of 649703900 in words is "six hundred forty-nine million, seven hundred three thousand, nine hundred".