64699 has 8 divisors (see below), whose sum is σ = 70560. Its totient is φ = 59136.

The previous prime is 64693. The next prime is 64709. The reversal of 64699 is 99646.

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 64699 - 2⁵ = 64667 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11 and base 13.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (64693) 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, 619 + ... + 715.

It is an arithmetic number, because the mean of its divisors is an integer number (8820).

2⁶⁴⁶⁹⁹ is an apocalyptic number.

64699 is a deficient number, since it is larger than the sum of its proper divisors (5861).

64699 is a wasteful number, since it uses less digits than its factorization.

64699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149.

The product of its digits is 11664, while the sum is 34.

The square root of 64699 is about 254.3599811291. The cubic root of 64699 is about 40.1450980276.

Subtracting from 64699 its product of digits (11664), we obtain a palindrome (53035).

The spelling of 64699 in words is "sixty-four thousand, six hundred ninety-nine".