64854427 has 12 divisors (see below), whose sum is σ = 71532720. Its totient is φ = 58754960.

The previous prime is 64854409. The next prime is 64854431. The reversal of 64854427 is 72445846.

It is a happy number.

It is not a de Polignac number, because 64854427 - 2²³ = 56465819 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 64854427.

It is not an unprimeable number, because it can be changed into a prime (64852427) 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 11 ways as a sum of consecutive naturals, for example, 42693 + ... + 44185.

It is an arithmetic number, because the mean of its divisors is an integer number (5961060).

Almost surely, 2^64854427 is an apocalyptic number.

64854427 is a deficient number, since it is larger than the sum of its proper divisors (6678293).

64854427 is a wasteful number, since it uses less digits than its factorization.

64854427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874 (or 1863 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 64854427 is about 8053.2246336483. The cubic root of 64854427 is about 401.7721929845.

The spelling of 64854427 in words is "sixty-four million, eight hundred fifty-four thousand, four hundred twenty-seven".