965835990 has 96 divisors (see below), whose sum is σ = 2909365056. Its totient is φ = 217728000.

The previous prime is 965835979. The next prime is 965836007. The reversal of 965835990 is 99538569.

965835990 is a `hidden beast` number, since 9 + 6 + 583 + 59 + 9 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35490 + ... + 56490.

It is an arithmetic number, because the mean of its divisors is an integer number (30305886).

Almost surely, 2^965835990 is an apocalyptic number.

965835990 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 965835990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454682528).

965835990 is an abundant number, since it is smaller than the sum of its proper divisors (1943529066).

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

965835990 is a wasteful number, since it uses less digits than its factorization.

965835990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21094 (or 21091 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The square root of 965835990 is about 31077.9019562132. The cubic root of 965835990 is about 988.4797910890.

The spelling of 965835990 in words is "nine hundred sixty-five million, eight hundred thirty-five thousand, nine hundred ninety".