825795729 has 20 divisors (see below), whose sum is σ = 1345742640. Its totient is φ = 500481720.

The previous prime is 825795721. The next prime is 825795739. The reversal of 825795729 is 927597528.

It is not a de Polignac number, because 825795729 - 2³ = 825795721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (825795721) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 462519 + ... + 464300.

It is an arithmetic number, because the mean of its divisors is an integer number (67287132).

Almost surely, 2^825795729 is an apocalyptic number.

It is an amenable number.

825795729 is a deficient number, since it is larger than the sum of its proper divisors (519946911).

825795729 is a wasteful number, since it uses less digits than its factorization.

825795729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926842 (or 926833 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 825795729 is about 28736.6617581096. The cubic root of 825795729 is about 938.1901682676.

The spelling of 825795729 in words is "eight hundred twenty-five million, seven hundred ninety-five thousand, seven hundred twenty-nine".