64227387 has 18 divisors (see below), whose sum is σ = 99768924. Its totient is φ = 36645840.

The previous prime is 64227347. The next prime is 64227389. The reversal of 64227387 is 78372246.

It is not a de Polignac number, because 64227387 - 2⁸ = 64227131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64227389) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 96837 + ... + 97497.

It is an arithmetic number, because the mean of its divisors is an integer number (5542718).

Almost surely, 2^64227387 is an apocalyptic number.

64227387 is a deficient number, since it is larger than the sum of its proper divisors (35541537).

64227387 is an frugal number, since it uses more digits than its factorization.

64227387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 671 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 64227387 is about 8014.1990866212. The cubic root of 64227387 is about 400.4731629879.

The spelling of 64227387 in words is "sixty-four million, two hundred twenty-seven thousand, three hundred eighty-seven".