989894125 has 64 divisors (see below), whose sum is σ = 1423858176. Its totient is φ = 680064000.

The previous prime is 989894107. The next prime is 989894159. The reversal of 989894125 is 521498989.

989894125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 989894125 - 2⁷ = 989893997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3573487 + ... + 3573763.

It is an arithmetic number, because the mean of its divisors is an integer number (22247784).

Almost surely, 2^989894125 is an apocalyptic number.

It is an amenable number.

989894125 is a deficient number, since it is larger than the sum of its proper divisors (433964051).

989894125 is a wasteful number, since it uses less digits than its factorization.

989894125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 429 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 55.

The square root of 989894125 is about 31462.5829359257. The cubic root of 989894125 is about 996.6199632233.

The spelling of 989894125 in words is "nine hundred eighty-nine million, eight hundred ninety-four thousand, one hundred twenty-five".