989740724 has 12 divisors (see below), whose sum is σ = 1979481504. Its totient is φ = 424174584.

The previous prime is 989740693. The next prime is 989740733. The reversal of 989740724 is 427047989.

989740724 is an admirable number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17673914 + ... + 17673969.

It is an arithmetic number, because the mean of its divisors is an integer number (164956792).

Almost surely, 2^989740724 is an apocalyptic number.

It is an amenable number.

989740724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

989740724 is a wasteful number, since it uses less digits than its factorization.

989740724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35347894 (or 35347892 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 989740724 is about 31460.1450092017. The cubic root of 989740724 is about 996.5684794693.

The spelling of 989740724 in words is "nine hundred eighty-nine million, seven hundred forty thousand, seven hundred twenty-four".