64082839 has 4 divisors (see below), whose sum is σ = 67455640. Its totient is φ = 60710040.

The previous prime is 64082813. The next prime is 64082861. The reversal of 64082839 is 93828046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64082839 - 2²³ = 55694231 is a prime.

It is a super-2 number, since 2×64082839² = 8213220508599842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64082939) 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, 1686372 + ... + 1686409.

It is an arithmetic number, because the mean of its divisors is an integer number (16863910).

Almost surely, 2^64082839 is an apocalyptic number.

64082839 is a deficient number, since it is larger than the sum of its proper divisors (3372801).

64082839 is a wasteful number, since it uses less digits than its factorization.

64082839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372800.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 64082839 is about 8005.1757632172. The cubic root of 64082839 is about 400.1725068428.

The spelling of 64082839 in words is "sixty-four million, eighty-two thousand, eight hundred thirty-nine".