64938365 has 8 divisors (see below), whose sum is σ = 78009048. Its totient is φ = 51895360.

The previous prime is 64938353. The next prime is 64938389. The reversal of 64938365 is 56383946.

It can be written as a sum of positive squares in 4 ways, for example, as 6522916 + 58415449 = 2554^2 + 7643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64938365 - 2¹² = 64934269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346 + ... + 11475.

It is an arithmetic number, because the mean of its divisors is an integer number (9751131).

Almost surely, 2^64938365 is an apocalyptic number.

It is an amenable number.

64938365 is a deficient number, since it is larger than the sum of its proper divisors (13070683).

64938365 is a wasteful number, since it uses less digits than its factorization.

64938365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13839.

The product of its digits is 466560, while the sum is 44.

The square root of 64938365 is about 8058.4344012966. The cubic root of 64938365 is about 401.9454498062.

The spelling of 64938365 in words is "sixty-four million, nine hundred thirty-eight thousand, three hundred sixty-five".