8725279 has 2 divisors, whose sum is σ = 8725280. Its totient is φ = 8725278.

The previous prime is 8725253. The next prime is 8725307. The reversal of 8725279 is 9725278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8725279 - 2¹⁹ = 8200991 is a prime.

It is a super-2 number, since 2×8725279² = 152260987255682, which contains 22 as substring.

8725279 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8725219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4362639 + 4362640.

It is an arithmetic number, because the mean of its divisors is an integer number (4362640).

Almost surely, 2^8725279 is an apocalyptic number.

8725279 is a deficient number, since it is larger than the sum of its proper divisors (1).

8725279 is an equidigital number, since it uses as much as digits as its factorization.

8725279 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 8725279 is about 2953.8583242938. The cubic root of 8725279 is about 205.8700204330.

Subtracting 8725279 from its reverse (9725278), we obtain a palindrome (999999).

The spelling of 8725279 in words is "eight million, seven hundred twenty-five thousand, two hundred seventy-nine".