811794064 has 45 divisors (see below), whose sum is σ = 1674811177. Its totient is φ = 381108992.

The previous prime is 811794017. The next prime is 811794073. The reversal of 811794064 is 460497118.

The square root of 811794064 is 28492.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 632019600 + 179774464 = 25140^2 + 13408^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1937247 + ... + 1937665.

Almost surely, 2^811794064 is an apocalyptic number.

811794064 is the 28492-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811794064

811794064 is an abundant number, since it is smaller than the sum of its proper divisors (863017113).

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

811794064 is an equidigital number, since it uses as much as digits as its factorization.

811794064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The cubic root of 811794064 is about 932.8574633095.

The spelling of 811794064 in words is "eight hundred eleven million, seven hundred ninety-four thousand, sixty-four".