64683646 has 8 divisors (see below), whose sum is σ = 97338384. Its totient is φ = 32237520.

The previous prime is 64683637. The next prime is 64683667. The reversal of 64683646 is 64638646.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51375 + ... + 52618.

It is an arithmetic number, because the mean of its divisors is an integer number (12167298).

Almost surely, 2^64683646 is an apocalyptic number.

64683646 is a deficient number, since it is larger than the sum of its proper divisors (32654738).

64683646 is a wasteful number, since it uses less digits than its factorization.

64683646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104306.

The product of its digits is 497664, while the sum is 43.

The square root of 64683646 is about 8042.6143759352. The cubic root of 64683646 is about 401.4192210735.

The spelling of 64683646 in words is "sixty-four million, six hundred eighty-three thousand, six hundred forty-six".