64682413 has 4 divisors (see below), whose sum is σ = 65349340. Its totient is φ = 64015488.

The previous prime is 64682407. The next prime is 64682447. The reversal of 64682413 is 31428646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31428646 = 2 ⋅15714323.

It can be written as a sum of positive squares in 2 ways, for example, as 29789764 + 34892649 = 5458^2 + 5907^2 .

It is a cyclic number.

It is not a de Polignac number, because 64682413 - 2⁵ = 64682381 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 (64682473) 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, 333318 + ... + 333511.

It is an arithmetic number, because the mean of its divisors is an integer number (16337335).

Almost surely, 2^64682413 is an apocalyptic number.

It is an amenable number.

64682413 is a deficient number, since it is larger than the sum of its proper divisors (666927).

64682413 is an equidigital number, since it uses as much as digits as its factorization.

64682413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666926.

The product of its digits is 27648, while the sum is 34.

The square root of 64682413 is about 8042.5377213912. The cubic root of 64682413 is about 401.4166704388.

The spelling of 64682413 in words is "sixty-four million, six hundred eighty-two thousand, four hundred thirteen".