64429566 has 16 divisors (see below), whose sum is σ = 131856384. Its totient is φ = 20976984.

The previous prime is 64429529. The next prime is 64429567. The reversal of 64429566 is 66592446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64429567) 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, 124606 + ... + 125121.

It is an arithmetic number, because the mean of its divisors is an integer number (8241024).

Almost surely, 2^64429566 is an apocalyptic number.

64429566 is an abundant number, since it is smaller than the sum of its proper divisors (67426818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64429566 is a wasteful number, since it uses less digits than its factorization.

64429566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249775.

The product of its digits is 311040, while the sum is 42.

The square root of 64429566 is about 8026.8029750331. The cubic root of 64429566 is about 400.8929343540.

The spelling of 64429566 in words is "sixty-four million, four hundred twenty-nine thousand, five hundred sixty-six".