64838339 has 4 divisors (see below), whose sum is σ = 64854456. Its totient is φ = 64822224.

The previous prime is 64838299. The next prime is 64838359. The reversal of 64838339 is 93383846.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64838339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64838339.

It is not an unprimeable number, because it can be changed into a prime (64838359) 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, 3572 + ... + 11934.

It is an arithmetic number, because the mean of its divisors is an integer number (16213614).

Almost surely, 2^64838339 is an apocalyptic number.

64838339 is a deficient number, since it is larger than the sum of its proper divisors (16117).

64838339 is an equidigital number, since it uses as much as digits as its factorization.

64838339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16116.

The product of its digits is 373248, while the sum is 44.

The square root of 64838339 is about 8052.2257171542. The cubic root of 64838339 is about 401.7389685983.

The spelling of 64838339 in words is "sixty-four million, eight hundred thirty-eight thousand, three hundred thirty-nine".