64413329 has 4 divisors (see below), whose sum is σ = 64773360. Its totient is φ = 64053300.

The previous prime is 64413313. The next prime is 64413341. The reversal of 64413329 is 92331446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92331446 = 2 ⋅46165723.

It is a cyclic number.

It is not a de Polignac number, because 64413329 - 2⁴ = 64413313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64413295 and 64413304.

It is not an unprimeable number, because it can be changed into a prime (64412329) 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, 179747 + ... + 180104.

It is an arithmetic number, because the mean of its divisors is an integer number (16193340).

Almost surely, 2^64413329 is an apocalyptic number.

It is an amenable number.

64413329 is a deficient number, since it is larger than the sum of its proper divisors (360031).

64413329 is a wasteful number, since it uses less digits than its factorization.

64413329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360030.

The product of its digits is 15552, while the sum is 32.

The square root of 64413329 is about 8025.7914874484. The cubic root of 64413329 is about 400.8592549639.

The spelling of 64413329 in words is "sixty-four million, four hundred thirteen thousand, three hundred twenty-nine".