825984731 has 8 divisors (see below), whose sum is σ = 970387824. Its totient is φ = 693133920.

The previous prime is 825984727. The next prime is 825984749. The reversal of 825984731 is 137489528.

It is a happy number.

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 825984731 - 2² = 825984727 is a prime.

It is a super-2 number, since 2×825984731² = 1364501551690284722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825984751) 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, 2887916 + ... + 2888201.

It is an arithmetic number, because the mean of its divisors is an integer number (121298478).

Almost surely, 2^825984731 is an apocalyptic number.

825984731 is a deficient number, since it is larger than the sum of its proper divisors (144403093).

825984731 is a wasteful number, since it uses less digits than its factorization.

825984731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5776141.

The product of its digits is 483840, while the sum is 47.

The square root of 825984731 is about 28739.9500869434. The cubic root of 825984731 is about 938.2617381429.

The spelling of 825984731 in words is "eight hundred twenty-five million, nine hundred eighty-four thousand, seven hundred thirty-one".