825728756 has 24 divisors (see below), whose sum is σ = 1453987584. Its totient is φ = 410312000.

The previous prime is 825728753. The next prime is 825728767. The reversal of 825728756 is 657827528.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825728753) 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, 865976 + ... + 866928.

It is an arithmetic number, because the mean of its divisors is an integer number (60582816).

Almost surely, 2^825728756 is an apocalyptic number.

It is an amenable number.

825728756 is a deficient number, since it is larger than the sum of its proper divisors (628258828).

825728756 is a wasteful number, since it uses less digits than its factorization.

825728756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2069 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 50.

The square root of 825728756 is about 28735.4964460334. The cubic root of 825728756 is about 938.1648048084.

The spelling of 825728756 in words is "eight hundred twenty-five million, seven hundred twenty-eight thousand, seven hundred fifty-six".