831488 has 52 divisors (see below), whose sum is σ = 1965840. Its totient is φ = 344064.

The previous prime is 831461. The next prime is 831503. The reversal of 831488 is 884138.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an Ulam number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28658 + ... + 28686.

2⁸³¹⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 831488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (982920).

831488 is an abundant number, since it is smaller than the sum of its proper divisors (1134352).

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

831488 is an equidigital number, since it uses as much as digits as its factorization.

831488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 38 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 831488 is about 911.8596383216. The cubic root of 831488 is about 94.0340905474.

Subtracting 831488 from its reverse (884138), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 831488 in words is "eight hundred thirty-one thousand, four hundred eighty-eight".