64340099 has 4 divisors (see below), whose sum is σ = 67726440. Its totient is φ = 60953760.

The previous prime is 64340093. The next prime is 64340113. The reversal of 64340099 is 99004346.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64340099 - 2⁸ = 64339843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64340093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693142 + ... + 1693179.

It is an arithmetic number, because the mean of its divisors is an integer number (16931610).

Almost surely, 2^64340099 is an apocalyptic number.

64340099 is a deficient number, since it is larger than the sum of its proper divisors (3386341).

64340099 is a wasteful number, since it uses less digits than its factorization.

64340099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386340.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 64340099 is about 8021.2280231895. The cubic root of 64340099 is about 400.7072882047.

The spelling of 64340099 in words is "sixty-four million, three hundred forty thousand, ninety-nine".