825404772 has 48 divisors (see below), whose sum is σ = 2012395392. Its totient is φ = 262817280.

The previous prime is 825404761. The next prime is 825404773. The reversal of 825404772 is 277404528.

It is a self number, because there is not a number n which added to its sum of digits gives 825404772.

It is not an unprimeable number, because it can be changed into a prime (825404773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268122 + ... + 271182.

It is an arithmetic number, because the mean of its divisors is an integer number (41924904).

Almost surely, 2^825404772 is an apocalyptic number.

It is an amenable number.

825404772 is an abundant number, since it is smaller than the sum of its proper divisors (1186990620).

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

825404772 is a wasteful number, since it uses less digits than its factorization.

825404772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068 (or 4066 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 825404772 is about 28729.8585447266. The cubic root of 825404772 is about 938.0420889063.

The spelling of 825404772 in words is "eight hundred twenty-five million, four hundred four thousand, seven hundred seventy-two".