811627394 has 16 divisors (see below), whose sum is σ = 1228587360. Its totient is φ = 402109920.

The previous prime is 811627309. The next prime is 811627403. The reversal of 811627394 is 493726118.

It is a super-4 number, since 4×811627394⁴ (a number of 37 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156182 + ... + 161294.

It is an arithmetic number, because the mean of its divisors is an integer number (76786710).

Almost surely, 2^811627394 is an apocalyptic number.

811627394 is a deficient number, since it is larger than the sum of its proper divisors (416959966).

811627394 is a wasteful number, since it uses less digits than its factorization.

811627394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5825.

The product of its digits is 72576, while the sum is 41.

The square root of 811627394 is about 28489.0749937586. The cubic root of 811627394 is about 932.7936170698.

The spelling of 811627394 in words is "eight hundred eleven million, six hundred twenty-seven thousand, three hundred ninety-four".