809010465 has 16 divisors (see below), whose sum is σ = 1295346048. Its totient is φ = 431162496.

The previous prime is 809010457. The next prime is 809010469. The reversal of 809010465 is 564010908.

It is not a de Polignac number, because 809010465 - 2³ = 809010457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (809010469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3069 + ... + 40341.

It is an arithmetic number, because the mean of its divisors is an integer number (80959128).

Almost surely, 2^809010465 is an apocalyptic number.

It is an amenable number.

809010465 is a deficient number, since it is larger than the sum of its proper divisors (486335583).

809010465 is a wasteful number, since it uses less digits than its factorization.

809010465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38728.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 809010465 is about 28443.1092709640. The cubic root of 809010465 is about 931.7900026205.

The spelling of 809010465 in words is "eight hundred nine million, ten thousand, four hundred sixty-five".