64222447 has 12 divisors (see below), whose sum is σ = 69359896. Its totient is φ = 59437440.

The previous prime is 64222429. The next prime is 64222469. The reversal of 64222447 is 74422246.

It is not a de Polignac number, because 64222447 - 2¹⁵ = 64189679 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64222547) 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 11 ways as a sum of consecutive naturals, for example, 15808 + ... + 19450.

Almost surely, 2^64222447 is an apocalyptic number.

64222447 is a deficient number, since it is larger than the sum of its proper divisors (5137449).

64222447 is a wasteful number, since it uses less digits than its factorization.

64222447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738 (or 3721 counting only the distinct ones).

The product of its digits is 21504, while the sum is 31.

The square root of 64222447 is about 8013.8908777198. The cubic root of 64222447 is about 400.4628953631.

The spelling of 64222447 in words is "sixty-four million, two hundred twenty-two thousand, four hundred forty-seven".