990768965 has 16 divisors (see below), whose sum is σ = 1252657920. Its totient is φ = 750202560.

The previous prime is 990768923. The next prime is 990768997. The reversal of 990768965 is 569867099.

It is not a de Polignac number, because 990768965 - 2⁶ = 990768901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113300 + ... + 121730.

It is an arithmetic number, because the mean of its divisors is an integer number (78291120).

Almost surely, 2^990768965 is an apocalyptic number.

990768965 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

990768965 is a deficient number, since it is larger than the sum of its proper divisors (261888955).

990768965 is a wasteful number, since it uses less digits than its factorization.

990768965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9692.

The product of its (nonzero) digits is 7348320, while the sum is 59.

The square root of 990768965 is about 31476.4827291742. The cubic root of 990768965 is about 996.9134714764.

The spelling of 990768965 in words is "nine hundred ninety million, seven hundred sixty-eight thousand, nine hundred sixty-five".