64345867 has 16 divisors (see below), whose sum is σ = 72005760. Its totient is φ = 57207808.

The previous prime is 64345859. The next prime is 64345871. The reversal of 64345867 is 76854346.

It is a cyclic number.

It is not a de Polignac number, because 64345867 - 2³ = 64345859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64345807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21783 + ... + 24559.

It is an arithmetic number, because the mean of its divisors is an integer number (4500360).

Almost surely, 2^64345867 is an apocalyptic number.

64345867 is a deficient number, since it is larger than the sum of its proper divisors (7659893).

64345867 is a wasteful number, since it uses less digits than its factorization.

64345867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870.

The product of its digits is 483840, while the sum is 43.

The square root of 64345867 is about 8021.5875610754. The cubic root of 64345867 is about 400.7192621298.

The spelling of 64345867 in words is "sixty-four million, three hundred forty-five thousand, eight hundred sixty-seven".