64886279 has 2 divisors, whose sum is σ = 64886280. Its totient is φ = 64886278.

The previous prime is 64886267. The next prime is 64886287. The reversal of 64886279 is 97268846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64886279 - 2²⁴ = 48109063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64886299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32443139 + 32443140.

It is an arithmetic number, because the mean of its divisors is an integer number (32443140).

Almost surely, 2^64886279 is an apocalyptic number.

64886279 is a deficient number, since it is larger than the sum of its proper divisors (1).

64886279 is an equidigital number, since it uses as much as digits as its factorization.

64886279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 50.

The square root of 64886279 is about 8055.2019838115. The cubic root of 64886279 is about 401.8379564387.

The spelling of 64886279 in words is "sixty-four million, eight hundred eighty-six thousand, two hundred seventy-nine".