989894750 has 64 divisors (see below), whose sum is σ = 2002867776. Its totient is φ = 364176000.

The previous prime is 989894749. The next prime is 989894767. The reversal of 989894750 is 57498989.

It is a self number, because there is not a number n which added to its sum of digits gives 989894750.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1757969 + ... + 1758531.

It is an arithmetic number, because the mean of its divisors is an integer number (31294809).

Almost surely, 2^989894750 is an apocalyptic number.

989894750 is an abundant number, since it is smaller than the sum of its proper divisors (1012973026).

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

989894750 is a wasteful number, since it uses less digits than its factorization.

989894750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 59.

The square root of 989894750 is about 31462.5928683572. The cubic root of 989894750 is about 996.6201729721.

The spelling of 989894750 in words is "nine hundred eighty-nine million, eight hundred ninety-four thousand, seven hundred fifty".