64461715 has 8 divisors (see below), whose sum is σ = 77567040. Its totient is φ = 51427392.

The previous prime is 64461713. The next prime is 64461731. The reversal of 64461715 is 51716446.

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

It is a cyclic number.

It is not a de Polignac number, because 64461715 - 2¹ = 64461713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64461713) 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 7 ways as a sum of consecutive naturals, for example, 15730 + ... + 19399.

It is an arithmetic number, because the mean of its divisors is an integer number (9695880).

Almost surely, 2^64461715 is an apocalyptic number.

64461715 is a deficient number, since it is larger than the sum of its proper divisors (13105325).

64461715 is a wasteful number, since it uses less digits than its factorization.

64461715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35501.

The product of its digits is 20160, while the sum is 34.

The square root of 64461715 is about 8028.8053283163. The cubic root of 64461715 is about 400.9596023176.

The spelling of 64461715 in words is "sixty-four million, four hundred sixty-one thousand, seven hundred fifteen".