64814467 has 4 divisors (see below), whose sum is σ = 65227456. Its totient is φ = 64401480.

The previous prime is 64814447. The next prime is 64814531. The reversal of 64814467 is 76441846.

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

It is a cyclic number.

It is not a de Polignac number, because 64814467 - 2¹⁹ = 64290179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64814447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206259 + ... + 206572.

It is an arithmetic number, because the mean of its divisors is an integer number (16306864).

Almost surely, 2^64814467 is an apocalyptic number.

64814467 is a deficient number, since it is larger than the sum of its proper divisors (412989).

64814467 is a wasteful number, since it uses less digits than its factorization.

64814467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412988.

The product of its digits is 129024, while the sum is 40.

The square root of 64814467 is about 8050.7432576129. The cubic root of 64814467 is about 401.6896588328.

The spelling of 64814467 in words is "sixty-four million, eight hundred fourteen thousand, four hundred sixty-seven".