811413774 has 80 divisors (see below), whose sum is σ = 1977397488. Its totient is φ = 247650048.

The previous prime is 811413763. The next prime is 811413833. The reversal of 811413774 is 477314118.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 97917 + ... + 105879.

Almost surely, 2^811413774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811413774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988698744).

811413774 is an abundant number, since it is smaller than the sum of its proper divisors (1165983714).

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

811413774 is a wasteful number, since it uses less digits than its factorization.

811413774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8031 (or 8022 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 811413774 is about 28485.3255905563. The cubic root of 811413774 is about 932.7117729221.

The spelling of 811413774 in words is "eight hundred eleven million, four hundred thirteen thousand, seven hundred seventy-four".