813875069 has 8 divisors (see below), whose sum is σ = 939353088. Its totient is φ = 690699600.

The previous prime is 813875057. The next prime is 813875071. The reversal of 813875069 is 960578318.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 813875069 - 2¹² = 813870973 is a prime.

It is a super-2 number, since 2×813875069² = 1324785255879509522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813875099) 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 7 ways as a sum of consecutive naturals, for example, 574877 + ... + 576290.

It is an arithmetic number, because the mean of its divisors is an integer number (117419136).

Almost surely, 2^813875069 is an apocalyptic number.

It is an amenable number.

813875069 is a deficient number, since it is larger than the sum of its proper divisors (125478019).

813875069 is a wasteful number, since it uses less digits than its factorization.

813875069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151275.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 813875069 is about 28528.4957367191. The cubic root of 813875069 is about 933.6538987144.

The spelling of 813875069 in words is "eight hundred thirteen million, eight hundred seventy-five thousand, sixty-nine".