989709496 has 32 divisors (see below), whose sum is σ = 1904666400. Its totient is φ = 481845760.

The previous prime is 989709491. The next prime is 989709499. The reversal of 989709496 is 694907989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989709491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183981 + ... + 189283.

It is an arithmetic number, because the mean of its divisors is an integer number (59520825).

Almost surely, 2^989709496 is an apocalyptic number.

It is an amenable number.

989709496 is a deficient number, since it is larger than the sum of its proper divisors (914956904).

989709496 is a wasteful number, since it uses less digits than its factorization.

989709496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919 (or 5915 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 61.

The square root of 989709496 is about 31459.6486947963. The cubic root of 989709496 is about 996.5579982166.

The spelling of 989709496 in words is "nine hundred eighty-nine million, seven hundred nine thousand, four hundred ninety-six".