8572279 has 2 divisors, whose sum is σ = 8572280. Its totient is φ = 8572278.

The previous prime is 8572253. The next prime is 8572309. The reversal of 8572279 is 9722758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8572279 - 2⁹ = 8571767 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 (8572219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4286139 + 4286140.

It is an arithmetic number, because the mean of its divisors is an integer number (4286140).

Almost surely, 2^8572279 is an apocalyptic number.

8572279 is a deficient number, since it is larger than the sum of its proper divisors (1).

8572279 is an equidigital number, since it uses as much as digits as its factorization.

8572279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 40.

The square root of 8572279 is about 2927.8454535716. The cubic root of 8572279 is about 204.6595897185.

It can be divided in two parts, 857 and 2279, that added together give a square (3136 = 56²).

The spelling of 8572279 in words is "eight million, five hundred seventy-two thousand, two hundred seventy-nine".