65798992 has 40 divisors (see below), whose sum is σ = 148101632. Its totient is φ = 27734400.

The previous prime is 65798989. The next prime is 65799007. The reversal of 65798992 is 29989756.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2017 + ... + 11647.

Almost surely, 2^65798992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65798992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74050816).

65798992 is an abundant number, since it is smaller than the sum of its proper divisors (82302640).

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

65798992 is a wasteful number, since it uses less digits than its factorization.

65798992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9707 (or 9701 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 55.

The square root of 65798992 is about 8111.6577837086. The cubic root of 65798992 is about 403.7133214387.

The spelling of 65798992 in words is "sixty-five million, seven hundred ninety-eight thousand, nine hundred ninety-two".