9722879 has 2 divisors, whose sum is σ = 9722880. Its totient is φ = 9722878.

The previous prime is 9722837. The next prime is 9722887. The reversal of 9722879 is 9782279.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9722879 - 2¹² = 9718783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9722819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4861439 + 4861440.

It is an arithmetic number, because the mean of its divisors is an integer number (4861440).

Almost surely, 2^9722879 is an apocalyptic number.

9722879 is a deficient number, since it is larger than the sum of its proper divisors (1).

9722879 is an equidigital number, since it uses as much as digits as its factorization.

9722879 is an evil number, because the sum of its binary digits is even.

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

The square root of 9722879 is about 3118.1531392797. The cubic root of 9722879 is about 213.4346667570.

It can be divided in two parts, 9722 and 879, that added together give a palindrome (10601).

The spelling of 9722879 in words is "nine million, seven hundred twenty-two thousand, eight hundred seventy-nine".