65821092 has 24 divisors (see below), whose sum is σ = 161666400. Its totient is φ = 20785536.

The previous prime is 65821079. The next prime is 65821099. The reversal of 65821092 is 29012856.

It is not an unprimeable number, because it can be changed into a prime (65821099) 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, 144117 + ... + 144572.

It is an arithmetic number, because the mean of its divisors is an integer number (6736100).

Almost surely, 2^65821092 is an apocalyptic number.

It is an amenable number.

65821092 is an abundant number, since it is smaller than the sum of its proper divisors (95845308).

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

65821092 is a wasteful number, since it uses less digits than its factorization.

65821092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288715 (or 288713 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 65821092 is about 8113.0199062988. The cubic root of 65821092 is about 403.7585149664.

The spelling of 65821092 in words is "sixty-five million, eight hundred twenty-one thousand, ninety-two".