64198793 has 4 divisors (see below), whose sum is σ = 64521600. Its totient is φ = 63875988.

The previous prime is 64198789. The next prime is 64198829. The reversal of 64198793 is 39789146.

64198793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64198793 - 2² = 64198789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64198703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161105 + ... + 161502.

It is an arithmetic number, because the mean of its divisors is an integer number (16130400).

Almost surely, 2^64198793 is an apocalyptic number.

It is an amenable number.

64198793 is a deficient number, since it is larger than the sum of its proper divisors (322807).

64198793 is a wasteful number, since it uses less digits than its factorization.

64198793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322806.

The product of its digits is 326592, while the sum is 47.

The square root of 64198793 is about 8012.4149293456. The cubic root of 64198793 is about 400.4137240169.

The spelling of 64198793 in words is "sixty-four million, one hundred ninety-eight thousand, seven hundred ninety-three".