811396196 has 24 divisors (see below), whose sum is σ = 1619122680. Its totient is φ = 352461312.

The previous prime is 811396193. The next prime is 811396207. The reversal of 811396196 is 691693118.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 209380900 + 602015296 = 14470^2 + 24536^2 .

It is not an unprimeable number, because it can be changed into a prime (811396193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458051 + ... + 459818.

It is an arithmetic number, because the mean of its divisors is an integer number (67463445).

Almost surely, 2^811396196 is an apocalyptic number.

It is an amenable number.

811396196 is a deficient number, since it is larger than the sum of its proper divisors (807726484).

811396196 is a wasteful number, since it uses less digits than its factorization.

811396196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917903 (or 917901 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The square root of 811396196 is about 28485.0170440532. The cubic root of 811396196 is about 932.7050376301.

The spelling of 811396196 in words is "eight hundred eleven million, three hundred ninety-six thousand, one hundred ninety-six".