831047480 has 32 divisors (see below), whose sum is σ = 1883517840. Its totient is φ = 329990400.

The previous prime is 831047471. The next prime is 831047489. The reversal of 831047480 is 84740138.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (831047471) and next prime (831047489).

It is a self number, because there is not a number n which added to its sum of digits gives 831047480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831047489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70346 + ... + 81305.

Almost surely, 2^831047480 is an apocalyptic number.

It is an amenable number.

831047480 is an abundant number, since it is smaller than the sum of its proper divisors (1052470360).

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

831047480 is a wasteful number, since it uses less digits than its factorization.

831047480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151799 (or 151795 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 831047480 is about 28827.8941305119. The cubic root of 831047480 is about 940.1748128176.

The spelling of 831047480 in words is "eight hundred thirty-one million, forty-seven thousand, four hundred eighty".