64193695 has 4 divisors (see below), whose sum is σ = 77032440. Its totient is φ = 51354952.

The previous prime is 64193677. The next prime is 64193699. The reversal of 64193695 is 59639146.

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

It is a cyclic number.

It is not a de Polignac number, because 64193695 - 2⁷ = 64193567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64193699) 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, 6419365 + ... + 6419374.

It is an arithmetic number, because the mean of its divisors is an integer number (19258110).

Almost surely, 2^64193695 is an apocalyptic number.

64193695 is a deficient number, since it is larger than the sum of its proper divisors (12838745).

64193695 is a wasteful number, since it uses less digits than its factorization.

64193695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838744.

The product of its digits is 174960, while the sum is 43.

The square root of 64193695 is about 8012.0967917269. The cubic root of 64193695 is about 400.4031248394.

The spelling of 64193695 in words is "sixty-four million, one hundred ninety-three thousand, six hundred ninety-five".