813493412 has 12 divisors (see below), whose sum is σ = 1423992780. Its totient is φ = 406638336.

The previous prime is 813493397. The next prime is 813493511. The reversal of 813493412 is 214394318.

813493412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 642825316 + 170668096 = 25354^2 + 13064^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 8837 + ... + 41292.

It is an arithmetic number, because the mean of its divisors is an integer number (118666065).

Almost surely, 2^813493412 is an apocalyptic number.

It is an amenable number.

813493412 is a deficient number, since it is larger than the sum of its proper divisors (610499368).

813493412 is a wasteful number, since it uses less digits than its factorization.

813493412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54190 (or 54188 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 813493412 is about 28521.8059035539. The cubic root of 813493412 is about 933.5079339450.

The spelling of 813493412 in words is "eight hundred thirteen million, four hundred ninety-three thousand, four hundred twelve".