64427267 has 4 divisors (see below), whose sum is σ = 65388936. Its totient is φ = 63465600.

The previous prime is 64427239. The next prime is 64427329. The reversal of 64427267 is 76272446.

64427267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64427267 - 2⁶ = 64427203 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 64427267.

It is not an unprimeable number, because it can be changed into a prime (64427567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480734 + ... + 480867.

It is an arithmetic number, because the mean of its divisors is an integer number (16347234).

Almost surely, 2^64427267 is an apocalyptic number.

64427267 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

64427267 is a deficient number, since it is larger than the sum of its proper divisors (961669).

64427267 is an equidigital number, since it uses as much as digits as its factorization.

64427267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961668.

The product of its digits is 112896, while the sum is 38.

The square root of 64427267 is about 8026.6597660546. The cubic root of 64427267 is about 400.8881660265. Note that the first 3 decimals are identical.

The spelling of 64427267 in words is "sixty-four million, four hundred twenty-seven thousand, two hundred sixty-seven".