913621868 has 12 divisors (see below), whose sum is σ = 1613507280. Its totient is φ = 452619792.

The previous prime is 913621853. The next prime is 913621879. The reversal of 913621868 is 868126319.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047296 + ... + 1048167.

It is an arithmetic number, because the mean of its divisors is an integer number (134458940).

Almost surely, 2^913621868 is an apocalyptic number.

It is an amenable number.

913621868 is a deficient number, since it is larger than the sum of its proper divisors (699885412).

913621868 is a wasteful number, since it uses less digits than its factorization.

913621868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095576 (or 2095574 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 913621868 is about 30226.1785212752. The cubic root of 913621868 is about 970.3360397339.

The spelling of 913621868 in words is "nine hundred thirteen million, six hundred twenty-one thousand, eight hundred sixty-eight".