828712531 has 8 divisors (see below), whose sum is σ = 873368720. Its totient is φ = 784160352.

The previous prime is 828712529. The next prime is 828712537. The reversal of 828712531 is 135217828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 828712531 - 2¹ = 828712529 is a prime.

It is a super-2 number, since 2×828712531² = 1373528918072851922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828712537) 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, 9360 + ... + 41773.

It is an arithmetic number, because the mean of its divisors is an integer number (109171090).

Almost surely, 2^828712531 is an apocalyptic number.

828712531 is a deficient number, since it is larger than the sum of its proper divisors (44656189).

828712531 is a wasteful number, since it uses less digits than its factorization.

828712531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52005.

The product of its digits is 26880, while the sum is 37.

The square root of 828712531 is about 28787.3675594001. The cubic root of 828712531 is about 939.2934674974.

The spelling of 828712531 in words is "eight hundred twenty-eight million, seven hundred twelve thousand, five hundred thirty-one".