64222071 has 8 divisors (see below), whose sum is σ = 90136320. Its totient is φ = 40561272.

The previous prime is 64222063. The next prime is 64222087. The reversal of 64222071 is 17022246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64222071 - 2³ = 64222063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64222001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563295 + ... + 563408.

It is an arithmetic number, because the mean of its divisors is an integer number (11267040).

Almost surely, 2^64222071 is an apocalyptic number.

64222071 is a deficient number, since it is larger than the sum of its proper divisors (25914249).

64222071 is a wasteful number, since it uses less digits than its factorization.

64222071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126725.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 64222071 is about 8013.8674184191. The cubic root of 64222071 is about 400.4621138381.

The spelling of 64222071 in words is "sixty-four million, two hundred twenty-two thousand, seventy-one".