64222047 has 12 divisors (see below), whose sum is σ = 95272840. Its totient is φ = 41657328.

The previous prime is 64222019. The next prime is 64222063. The reversal of 64222047 is 74022246.

It is a happy number.

It is not a de Polignac number, because 64222047 - 2¹⁶ = 64156511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64222047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64222007) 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, 96097 + ... + 96762.

Almost surely, 2^64222047 is an apocalyptic number.

64222047 is a deficient number, since it is larger than the sum of its proper divisors (31050793).

64222047 is a wasteful number, since it uses less digits than its factorization.

64222047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192902 (or 192899 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 64222047 is about 8013.8659210147. The cubic root of 64222047 is about 400.4620639534.

It can be divided in two parts, 64 and 222047, that added together give a triangular number (222111 = T₆₆₆).

The spelling of 64222047 in words is "sixty-four million, two hundred twenty-two thousand, forty-seven".