825689604 has 24 divisors (see below), whose sum is σ = 2010375360. Its totient is φ = 263263264.

The previous prime is 825689591. The next prime is 825689617. The reversal of 825689604 is 406986528.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (825689591) and next prime (825689617).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1495539 + ... + 1496090.

It is an arithmetic number, because the mean of its divisors is an integer number (83765640).

Almost surely, 2^825689604 is an apocalyptic number.

It is an amenable number.

825689604 is an abundant number, since it is smaller than the sum of its proper divisors (1184685756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

825689604 is a wasteful number, since it uses less digits than its factorization.

825689604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991659 (or 2991657 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 825689604 is about 28734.8151899399. The cubic root of 825689604 is about 938.1499768524.

The spelling of 825689604 in words is "eight hundred twenty-five million, six hundred eighty-nine thousand, six hundred four".