64842715 has 8 divisors (see below), whose sum is σ = 88927200. Its totient is φ = 44463552.

The previous prime is 64842703. The next prime is 64842721. The reversal of 64842715 is 51724846.

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

It is not a de Polignac number, because 64842715 - 2¹¹ = 64840667 is a prime.

It is an unprimeable number.

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, 926290 + ... + 926359.

It is an arithmetic number, because the mean of its divisors is an integer number (11115900).

Almost surely, 2^64842715 is an apocalyptic number.

64842715 is a deficient number, since it is larger than the sum of its proper divisors (24084485).

64842715 is a wasteful number, since it uses less digits than its factorization.

64842715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852661.

The product of its digits is 53760, while the sum is 37.

The square root of 64842715 is about 8052.4974386832. The cubic root of 64842715 is about 401.7480063076.

The spelling of 64842715 in words is "sixty-four million, eight hundred forty-two thousand, seven hundred fifteen".