649102676 has 24 divisors (see below), whose sum is σ = 1178177280. Its totient is φ = 312580800.

The previous prime is 649102669. The next prime is 649102691. The reversal of 649102676 is 676201946.

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, 13760 + ... + 38568.

It is an arithmetic number, because the mean of its divisors is an integer number (49090720).

Almost surely, 2^649102676 is an apocalyptic number.

It is an amenable number.

649102676 is a deficient number, since it is larger than the sum of its proper divisors (529074604).

649102676 is a wasteful number, since it uses less digits than its factorization.

649102676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25055 (or 25053 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 649102676 is about 25477.4935187903. The cubic root of 649102676 is about 865.8403078540.

The spelling of 649102676 in words is "six hundred forty-nine million, one hundred two thousand, six hundred seventy-six".