64018343 has 4 divisors (see below), whose sum is σ = 65579808. Its totient is φ = 62456880.

The previous prime is 64018337. The next prime is 64018349. The reversal of 64018343 is 34381046.

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 (64018337) and next prime (64018349).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64018343 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 (64018349) 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, 780671 + ... + 780752.

It is an arithmetic number, because the mean of its divisors is an integer number (16394952).

Almost surely, 2^64018343 is an apocalyptic number.

64018343 is a deficient number, since it is larger than the sum of its proper divisors (1561465).

64018343 is a wasteful number, since it uses less digits than its factorization.

64018343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561464.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 64018343 is about 8001.1463553668. The cubic root of 64018343 is about 400.0382109330.

Adding to 64018343 its reverse (34381046), we get a palindrome (98399389).

The spelling of 64018343 in words is "sixty-four million, eighteen thousand, three hundred forty-three".