825864893 has 8 divisors (see below), whose sum is σ = 974292480. Its totient is φ = 685049040.

The previous prime is 825864889. The next prime is 825864899. The reversal of 825864893 is 398468528.

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 825864893 - 2² = 825864889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825864899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1902698 + ... + 1903131.

It is an arithmetic number, because the mean of its divisors is an integer number (121786560).

Almost surely, 2^825864893 is an apocalyptic number.

It is an amenable number.

825864893 is a deficient number, since it is larger than the sum of its proper divisors (148427587).

825864893 is a wasteful number, since it uses less digits than its factorization.

825864893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3805867.

The product of its digits is 3317760, while the sum is 53.

The square root of 825864893 is about 28737.8651433957. The cubic root of 825864893 is about 938.2163600448.

The spelling of 825864893 in words is "eight hundred twenty-five million, eight hundred sixty-four thousand, eight hundred ninety-three".