64222079 has 4 divisors (see below), whose sum is σ = 64239000. Its totient is φ = 64205160.

The previous prime is 64222063. The next prime is 64222087. The reversal of 64222079 is 97022246.

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 64222079 - 2⁴ = 64222063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64222009) 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, 164 + ... + 11334.

It is an arithmetic number, because the mean of its divisors is an integer number (16059750).

Almost surely, 2^64222079 is an apocalyptic number.

64222079 is a deficient number, since it is larger than the sum of its proper divisors (16921).

64222079 is a wasteful number, since it uses less digits than its factorization.

64222079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16920.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 64222079 is about 8013.8679175539. The cubic root of 64222079 is about 400.4621304663.

The spelling of 64222079 in words is "sixty-four million, two hundred twenty-two thousand, seventy-nine".