813076427 has 4 divisors (see below), whose sum is σ = 848427600. Its totient is φ = 777725256.

The previous prime is 813076403. The next prime is 813076447. The reversal of 813076427 is 724670318.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 813076427 - 2¹² = 813072331 is a prime.

It is a super-2 number, since 2×813076427² = 1322186552286172658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813076447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17675552 + ... + 17675597.

It is an arithmetic number, because the mean of its divisors is an integer number (212106900).

Almost surely, 2^813076427 is an apocalyptic number.

813076427 is a deficient number, since it is larger than the sum of its proper divisors (35351173).

813076427 is a wasteful number, since it uses less digits than its factorization.

813076427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35351172.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 813076427 is about 28514.4950332283. The cubic root of 813076427 is about 933.3484057798.

The spelling of 813076427 in words is "eight hundred thirteen million, seventy-six thousand, four hundred twenty-seven".