65340393 has 16 divisors (see below), whose sum is σ = 90436800. Its totient is φ = 41912640.

The previous prime is 65340391. The next prime is 65340397. The reversal of 65340393 is 39304356.

It is not a de Polignac number, because 65340393 - 2¹ = 65340391 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65340391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27663 + ... + 29931.

It is an arithmetic number, because the mean of its divisors is an integer number (5652300).

Almost surely, 2^65340393 is an apocalyptic number.

It is an amenable number.

65340393 is a deficient number, since it is larger than the sum of its proper divisors (25096407).

65340393 is a wasteful number, since it uses less digits than its factorization.

65340393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632.

The product of its (nonzero) digits is 29160, while the sum is 33.

The square root of 65340393 is about 8083.3404604780. The cubic root of 65340393 is about 402.7732141909.

The spelling of 65340393 in words is "sixty-five million, three hundred forty thousand, three hundred ninety-three".