64813367 has 8 divisors (see below), whose sum is σ = 68988672. Its totient is φ = 60678400.

The previous prime is 64813339. The next prime is 64813387. The reversal of 64813367 is 76331846.

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 64813367 - 2⁶ = 64813303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64813367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64813327) 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, 6734 + ... + 13227.

It is an arithmetic number, because the mean of its divisors is an integer number (8623584).

Almost surely, 2^64813367 is an apocalyptic number.

64813367 is a deficient number, since it is larger than the sum of its proper divisors (4175305).

64813367 is a wasteful number, since it uses less digits than its factorization.

64813367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20169.

The product of its digits is 72576, while the sum is 38.

The square root of 64813367 is about 8050.6749406494. The cubic root of 64813367 is about 401.6873863920.

The spelling of 64813367 in words is "sixty-four million, eight hundred thirteen thousand, three hundred sixty-seven".