65268309 has 8 divisors (see below), whose sum is σ = 87415552. Its totient is φ = 43316640.

The previous prime is 65268257. The next prime is 65268311. The reversal of 65268309 is 90386256.

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

It is not a de Polignac number, because 65268309 - 2⁸ = 65268053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65268409) 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, 48112 + ... + 49449.

It is an arithmetic number, because the mean of its divisors is an integer number (10926944).

Almost surely, 2^65268309 is an apocalyptic number.

It is an amenable number.

65268309 is a deficient number, since it is larger than the sum of its proper divisors (22147243).

65268309 is a wasteful number, since it uses less digits than its factorization.

65268309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97787.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 65268309 is about 8078.8804298616. The cubic root of 65268309 is about 402.6250455710.

The spelling of 65268309 in words is "sixty-five million, two hundred sixty-eight thousand, three hundred nine".