831264487 has 8 divisors (see below), whose sum is σ = 888709536. Its totient is φ = 774769152.

The previous prime is 831264479. The next prime is 831264491. The reversal of 831264487 is 784462138.

831264487 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 not a de Polignac number, because 831264487 - 2³ = 831264479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831264407) 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, 235618 + ... + 239119.

It is an arithmetic number, because the mean of its divisors is an integer number (111088692).

Almost surely, 2^831264487 is an apocalyptic number.

831264487 is a deficient number, since it is larger than the sum of its proper divisors (57445049).

831264487 is a wasteful number, since it uses less digits than its factorization.

831264487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474857.

The product of its digits is 258048, while the sum is 43.

The square root of 831264487 is about 28831.6577220249. The cubic root of 831264487 is about 940.2566399753.

The spelling of 831264487 in words is "eight hundred thirty-one million, two hundred sixty-four thousand, four hundred eighty-seven".