64682247 has 8 divisors (see below), whose sum is σ = 98563456. Its totient is φ = 36961272.

The previous prime is 64682237. The next prime is 64682281. The reversal of 64682247 is 74228646.

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

It is not a de Polignac number, because 64682247 - 2¹⁴ = 64665863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64682227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540033 + ... + 1540074.

It is an arithmetic number, because the mean of its divisors is an integer number (12320432).

Almost surely, 2^64682247 is an apocalyptic number.

64682247 is a deficient number, since it is larger than the sum of its proper divisors (33881209).

64682247 is a wasteful number, since it uses less digits than its factorization.

64682247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080117.

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

The square root of 64682247 is about 8042.5274012589. The cubic root of 64682247 is about 401.4163270419.

The spelling of 64682247 in words is "sixty-four million, six hundred eighty-two thousand, two hundred forty-seven".