825198894 has 32 divisors (see below), whose sum is σ = 1974836640. Its totient is φ = 253907136.

The previous prime is 825198877. The next prime is 825198929. The reversal of 825198894 is 498891528.

825198894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 825198894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587047 + ... + 588450.

It is an arithmetic number, because the mean of its divisors is an integer number (61713645).

Almost surely, 2^825198894 is an apocalyptic number.

825198894 is an abundant number, since it is smaller than the sum of its proper divisors (1149637746).

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

825198894 is a wasteful number, since it uses less digits than its factorization.

825198894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175521 (or 1175515 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 54.

The square root of 825198894 is about 28726.2753241697. The cubic root of 825198894 is about 937.9640915024.

The spelling of 825198894 in words is "eight hundred twenty-five million, one hundred ninety-eight thousand, eight hundred ninety-four".