64627842 has 8 divisors (see below), whose sum is σ = 129255696. Its totient is φ = 21542612.

The previous prime is 64627819. The next prime is 64627859. The reversal of 64627842 is 24872646.

It is a sphenic number, since it is the product of 3 distinct primes.

64627842 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 64627842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5385648 + ... + 5385659.

It is an arithmetic number, because the mean of its divisors is an integer number (16156962).

Almost surely, 2^64627842 is an apocalyptic number.

64627842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64627842 is a wasteful number, since it uses less digits than its factorization.

64627842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771312.

The product of its digits is 129024, while the sum is 39.

The square root of 64627842 is about 8039.1443574550. The cubic root of 64627842 is about 401.3037501388.

The spelling of 64627842 in words is "sixty-four million, six hundred twenty-seven thousand, eight hundred forty-two".