65389313 has 4 divisors (see below), whose sum is σ = 71333808. Its totient is φ = 59444820.

The previous prime is 65389307. The next prime is 65389321. The reversal of 65389313 is 31398356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65389313 - 2⁴ = 65389297 is a prime.

It is a super-2 number, since 2×65389313² = 8551524509223938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65389213) 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, 2972231 + ... + 2972252.

It is an arithmetic number, because the mean of its divisors is an integer number (17833452).

Almost surely, 2^65389313 is an apocalyptic number.

It is an amenable number.

65389313 is a deficient number, since it is larger than the sum of its proper divisors (5944495).

65389313 is a wasteful number, since it uses less digits than its factorization.

65389313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5944494.

The product of its digits is 58320, while the sum is 38.

The square root of 65389313 is about 8086.3658710202. The cubic root of 65389313 is about 402.8737071603.

It can be divided in two parts, 6538 and 9313, that added together give a palindrome (15851).

The spelling of 65389313 in words is "sixty-five million, three hundred eighty-nine thousand, three hundred thirteen".