64489323 has 8 divisors (see below), whose sum is σ = 86057536. Its totient is φ = 42957000.

The previous prime is 64489319. The next prime is 64489361. The reversal of 64489323 is 32398446.

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

It is not a de Polignac number, because 64489323 - 2² = 64489319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64487323) 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, 4453 + ... + 12198.

It is an arithmetic number, because the mean of its divisors is an integer number (10757192).

Almost surely, 2^64489323 is an apocalyptic number.

64489323 is a deficient number, since it is larger than the sum of its proper divisors (21568213).

64489323 is a wasteful number, since it uses less digits than its factorization.

64489323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17945.

The product of its digits is 124416, while the sum is 39.

The square root of 64489323 is about 8030.5244536082. The cubic root of 64489323 is about 401.0168358385.

The spelling of 64489323 in words is "sixty-four million, four hundred eighty-nine thousand, three hundred twenty-three".