64854319 has 4 divisors (see below), whose sum is σ = 67674096. Its totient is φ = 62034544.

The previous prime is 64854289. The next prime is 64854331. The reversal of 64854319 is 91345846.

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 64854319 - 2²³ = 56465711 is a prime.

It is a super-2 number, since 2×64854319² = 8412165385907522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64854359) 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, 1409854 + ... + 1409899.

It is an arithmetic number, because the mean of its divisors is an integer number (16918524).

Almost surely, 2^64854319 is an apocalyptic number.

64854319 is a deficient number, since it is larger than the sum of its proper divisors (2819777).

64854319 is a wasteful number, since it uses less digits than its factorization.

64854319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819776.

The product of its digits is 103680, while the sum is 40.

The square root of 64854319 is about 8053.2179282570. The cubic root of 64854319 is about 401.7719699649.

The spelling of 64854319 in words is "sixty-four million, eight hundred fifty-four thousand, three hundred nineteen".