64345863 has 8 divisors (see below), whose sum is σ = 88562176. Its totient is φ = 41513400.

The previous prime is 64345859. The next prime is 64345871. The reversal of 64345863 is 36854346.

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

It is not a de Polignac number, because 64345863 - 2² = 64345859 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64345873) 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, 345853 + ... + 346038.

It is an arithmetic number, because the mean of its divisors is an integer number (11070272).

Almost surely, 2^64345863 is an apocalyptic number.

64345863 is a deficient number, since it is larger than the sum of its proper divisors (24216313).

64345863 is a wasteful number, since it uses less digits than its factorization.

64345863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691925.

The product of its digits is 207360, while the sum is 39.

The square root of 64345863 is about 8021.5873117482. The cubic root of 64345863 is about 400.7192538263.

The spelling of 64345863 in words is "sixty-four million, three hundred forty-five thousand, eight hundred sixty-three".