809480784 has 60 divisors (see below), whose sum is σ = 2432579424. Its totient is φ = 231279552.

The previous prime is 809480779. The next prime is 809480809. The reversal of 809480784 is 487084908.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169732 + ... + 174435.

Almost surely, 2^809480784 is an apocalyptic number.

809480784 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

809480784 is an abundant number, since it is smaller than the sum of its proper divisors (1623098640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

809480784 is a wasteful number, since it uses less digits than its factorization.

809480784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344192 (or 344179 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 809480784 is about 28451.3757839581. The cubic root of 809480784 is about 931.9705333080.

The spelling of 809480784 in words is "eight hundred nine million, four hundred eighty thousand, seven hundred eighty-four".