64389383 has 4 divisors (see below), whose sum is σ = 64418808. Its totient is φ = 64359960.

The previous prime is 64389359. The next prime is 64389407. The reversal of 64389383 is 38398346.

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

It is an interprime number because it is at equal distance from previous prime (64389359) and next prime (64389407).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64389383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64389313) 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, 11141 + ... + 15902.

It is an arithmetic number, because the mean of its divisors is an integer number (16104702).

Almost surely, 2^64389383 is an apocalyptic number.

64389383 is a deficient number, since it is larger than the sum of its proper divisors (29425).

64389383 is a wasteful number, since it uses less digits than its factorization.

64389383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29424.

The product of its digits is 373248, while the sum is 44.

The square root of 64389383 is about 8024.2995332926. The cubic root of 64389383 is about 400.8095749489.

The spelling of 64389383 in words is "sixty-four million, three hundred eighty-nine thousand, three hundred eighty-three".