64423167 has 16 divisors (see below), whose sum is σ = 90816000. Its totient is φ = 40509504.

The previous prime is 64423127. The next prime is 64423169. The reversal of 64423167 is 76132446.

It is a happy number.

It is not a de Polignac number, because 64423167 - 2¹⁵ = 64390399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64423169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11259 + ... + 15987.

It is an arithmetic number, because the mean of its divisors is an integer number (5676000).

Almost surely, 2^64423167 is an apocalyptic number.

64423167 is a deficient number, since it is larger than the sum of its proper divisors (26392833).

64423167 is a wasteful number, since it uses less digits than its factorization.

64423167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990.

The product of its digits is 24192, while the sum is 33.

The square root of 64423167 is about 8026.4043631006. The cubic root of 64423167 is about 400.8796619855.

The spelling of 64423167 in words is "sixty-four million, four hundred twenty-three thousand, one hundred sixty-seven".