65239339 has 8 divisors (see below), whose sum is σ = 74264832. Its totient is φ = 56729640.

The previous prime is 65239333. The next prime is 65239367. The reversal of 65239339 is 93393256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65239339 - 2⁹ = 65238827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65239333) 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, 128679 + ... + 129184.

It is an arithmetic number, because the mean of its divisors is an integer number (9283104).

Almost surely, 2^65239339 is an apocalyptic number.

65239339 is a deficient number, since it is larger than the sum of its proper divisors (9025493).

65239339 is a wasteful number, since it uses less digits than its factorization.

65239339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257897.

The product of its digits is 131220, while the sum is 40.

The square root of 65239339 is about 8077.0872844114. The cubic root of 65239339 is about 402.5654670205.

The spelling of 65239339 in words is "sixty-five million, two hundred thirty-nine thousand, three hundred thirty-nine".