8972279 has 2 divisors, whose sum is σ = 8972280. Its totient is φ = 8972278.

The previous prime is 8972273. The next prime is 8972287. The reversal of 8972279 is 9722798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8972279 - 2⁴ = 8972263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8972273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4486139 + 4486140.

It is an arithmetic number, because the mean of its divisors is an integer number (4486140).

Almost surely, 2^8972279 is an apocalyptic number.

8972279 is a deficient number, since it is larger than the sum of its proper divisors (1).

8972279 is an equidigital number, since it uses as much as digits as its factorization.

8972279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 44.

The square root of 8972279 is about 2995.3762701871. The cubic root of 8972279 is about 207.7945996868.

The spelling of 8972279 in words is "eight million, nine hundred seventy-two thousand, two hundred seventy-nine".