64794393 has 6 divisors (see below), whose sum is σ = 93591914. Its totient is φ = 43196256.

The previous prime is 64794377. The next prime is 64794397. The reversal of 64794393 is 39349746.

It can be written as a sum of positive squares in only one way, i.e., 45319824 + 19474569 = 6732^2 + 4413^2 .

It is not a de Polignac number, because 64794393 - 2⁴ = 64794377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64794397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3599680 + ... + 3599697.

Almost surely, 2^64794393 is an apocalyptic number.

It is an amenable number.

64794393 is a deficient number, since it is larger than the sum of its proper divisors (28797521).

64794393 is a wasteful number, since it uses less digits than its factorization.

64794393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7199383 (or 7199380 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 64794393 is about 8049.4964438777. The cubic root of 64794393 is about 401.6481848060.

The spelling of 64794393 in words is "sixty-four million, seven hundred ninety-four thousand, three hundred ninety-three".