64222957 has 8 divisors (see below), whose sum is σ = 68177592. Its totient is φ = 60288000.

The previous prime is 64222931. The next prime is 64222967. The reversal of 64222957 is 75922246.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32649796 + 31573161 = 5714^2 + 5619^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64222957 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 (64222967) 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, 2107 + ... + 11527.

It is an arithmetic number, because the mean of its divisors is an integer number (8522199).

Almost surely, 2^64222957 is an apocalyptic number.

It is an amenable number.

64222957 is a deficient number, since it is larger than the sum of its proper divisors (3954635).

64222957 is a wasteful number, since it uses less digits than its factorization.

64222957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9839.

The product of its digits is 60480, while the sum is 37.

The square root of 64222957 is about 8013.9226974061. The cubic root of 64222957 is about 400.4639554054.

The spelling of 64222957 in words is "sixty-four million, two hundred twenty-two thousand, nine hundred fifty-seven".