65239792 has 20 divisors (see below), whose sum is σ = 130761720. Its totient is φ = 31494848.

The previous prime is 65239771. The next prime is 65239793. The reversal of 65239792 is 29793256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65239793) 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, 69838 + ... + 70765.

It is an arithmetic number, because the mean of its divisors is an integer number (6538086).

Almost surely, 2^65239792 is an apocalyptic number.

It is an amenable number.

65239792 is an abundant number, since it is smaller than the sum of its proper divisors (65521928).

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

65239792 is a wasteful number, since it uses less digits than its factorization.

65239792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140640 (or 140634 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 65239792 is about 8077.1153266497. The cubic root of 65239792 is about 402.5663987780.

The spelling of 65239792 in words is "sixty-five million, two hundred thirty-nine thousand, seven hundred ninety-two".