64345793 has 4 divisors (see below), whose sum is σ = 64717908. Its totient is φ = 63973680.

The previous prime is 64345783. The next prime is 64345807. The reversal of 64345793 is 39754346.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44782864 + 19562929 = 6692^2 + 4423^2 .

It is a cyclic number.

It is not a de Polignac number, because 64345793 - 2⁸ = 64345537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64345793.

It is not an unprimeable number, because it can be changed into a prime (64345733) 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, 185798 + ... + 186143.

It is an arithmetic number, because the mean of its divisors is an integer number (16179477).

Almost surely, 2^64345793 is an apocalyptic number.

It is an amenable number.

64345793 is a deficient number, since it is larger than the sum of its proper divisors (372115).

64345793 is a wasteful number, since it uses less digits than its factorization.

64345793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372114.

The product of its digits is 272160, while the sum is 41.

The square root of 64345793 is about 8021.5829485208. The cubic root of 64345793 is about 400.7191085160.

The spelling of 64345793 in words is "sixty-four million, three hundred forty-five thousand, seven hundred ninety-three".