814797081 has 24 divisors (see below), whose sum is σ = 1352594880. Its totient is φ = 462990816.

The previous prime is 814797077. The next prime is 814797163. The reversal of 814797081 is 180797418.

It is not a de Polignac number, because 814797081 - 2² = 814797077 is a prime.

It is a super-2 number, since 2×814797081² = 1327788566412241122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (814797031) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 24850 + ... + 47403.

It is an arithmetic number, because the mean of its divisors is an integer number (56358120).

Almost surely, 2^814797081 is an apocalyptic number.

It is an amenable number.

814797081 is a deficient number, since it is larger than the sum of its proper divisors (537797799).

814797081 is a wasteful number, since it uses less digits than its factorization.

814797081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72445 (or 72442 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 814797081 is about 28544.6506547199. The cubic root of 814797081 is about 934.0063341448.

The spelling of 814797081 in words is "eight hundred fourteen million, seven hundred ninety-seven thousand, eighty-one".