990988716 has 12 divisors (see below), whose sum is σ = 2312307032. Its totient is φ = 330329568.

The previous prime is 990988711. The next prime is 990988727. The reversal of 990988716 is 617889099.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (990988711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41291185 + ... + 41291208.

Almost surely, 2^990988716 is an apocalyptic number.

It is an amenable number.

990988716 is an abundant number, since it is smaller than the sum of its proper divisors (1321318316).

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

990988716 is a wasteful number, since it uses less digits than its factorization.

990988716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82582400 (or 82582398 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 57.

The square root of 990988716 is about 31479.9732528476. The cubic root of 990988716 is about 996.9871706419.

The spelling of 990988716 in words is "nine hundred ninety million, nine hundred eighty-eight thousand, seven hundred sixteen".