825798789 has 48 divisors (see below), whose sum is σ = 1263854592. Its totient is φ = 518997024.

The previous prime is 825798781. The next prime is 825798797. The reversal of 825798789 is 987897528.

It is an interprime number because it is at equal distance from previous prime (825798781) and next prime (825798797).

It is not a de Polignac number, because 825798789 - 2³ = 825798781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825798781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1509414 + ... + 1509960.

It is an arithmetic number, because the mean of its divisors is an integer number (26330304).

Almost surely, 2^825798789 is an apocalyptic number.

It is an amenable number.

825798789 is a deficient number, since it is larger than the sum of its proper divisors (438055803).

825798789 is a wasteful number, since it uses less digits than its factorization.

825798789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 723 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 63.

The square root of 825798789 is about 28736.7150001527. The cubic root of 825798789 is about 938.1913270927.

The spelling of 825798789 in words is "eight hundred twenty-five million, seven hundred ninety-eight thousand, seven hundred eighty-nine".