813270889 has 8 divisors (see below), whose sum is σ = 859753440. Its totient is φ = 767156256.

The previous prime is 813270859. The next prime is 813270893. The reversal of 813270889 is 988072318.

813270889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 813270889 - 2¹⁵ = 813238121 is a prime.

It is a super-2 number, since 2×813270889² = 1322819077789700642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813270839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87427 + ... + 96280.

It is an arithmetic number, because the mean of its divisors is an integer number (107469180).

Almost surely, 2^813270889 is an apocalyptic number.

It is an amenable number.

813270889 is a deficient number, since it is larger than the sum of its proper divisors (46482551).

813270889 is a wasteful number, since it uses less digits than its factorization.

813270889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183959.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 813270889 is about 28517.9047091472. The cubic root of 813270889 is about 933.4228089248.

The spelling of 813270889 in words is "eight hundred thirteen million, two hundred seventy thousand, eight hundred eighty-nine".