913821396 has 12 divisors (see below), whose sum is σ = 2132249952. Its totient is φ = 304607128.

The previous prime is 913821343. The next prime is 913821401. The reversal of 913821396 is 693128319.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38075880 + ... + 38075903.

It is an arithmetic number, because the mean of its divisors is an integer number (177687496).

Almost surely, 2^913821396 is an apocalyptic number.

It is an amenable number.

913821396 is an abundant number, since it is smaller than the sum of its proper divisors (1218428556).

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

913821396 is a wasteful number, since it uses less digits than its factorization.

913821396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76151790 (or 76151788 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 913821396 is about 30229.4789237261. The cubic root of 913821396 is about 970.4066725722.

The spelling of 913821396 in words is "nine hundred thirteen million, eight hundred twenty-one thousand, three hundred ninety-six".