64595393 has 8 divisors (see below), whose sum is σ = 69686568. Its totient is φ = 59647744.

The previous prime is 64595381. The next prime is 64595467. The reversal of 64595393 is 39359546.

It can be written as a sum of positive squares in 4 ways, for example, as 14227984 + 50367409 = 3772^2 + 7097^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 64595393 - 2¹⁸ = 64333249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64595593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34946 + ... + 36747.

It is an arithmetic number, because the mean of its divisors is an integer number (8710821).

Almost surely, 2^64595393 is an apocalyptic number.

It is an amenable number.

64595393 is a deficient number, since it is larger than the sum of its proper divisors (5091175).

64595393 is a wasteful number, since it uses less digits than its factorization.

64595393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71763.

The product of its digits is 437400, while the sum is 44.

The square root of 64595393 is about 8037.1259166446. The cubic root of 64595393 is about 401.2365753475.

The spelling of 64595393 in words is "sixty-four million, five hundred ninety-five thousand, three hundred ninety-three".