7122769 has 2 divisors, whose sum is σ = 7122770. Its totient is φ = 7122768.

The previous prime is 7122763. The next prime is 7122781. The reversal of 7122769 is 9672217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4601025 + 2521744 = 2145^2 + 1588^2 .

It is a cyclic number.

It is not a de Polignac number, because 7122769 - 2³ = 7122761 is a prime.

It is a super-2 number, since 2×7122769² = 101467676454722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7122761) 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, 3561384 + 3561385.

It is an arithmetic number, because the mean of its divisors is an integer number (3561385).

Almost surely, 2^7122769 is an apocalyptic number.

It is an amenable number.

7122769 is a deficient number, since it is larger than the sum of its proper divisors (1).

7122769 is an equidigital number, since it uses as much as digits as its factorization.

7122769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 34.

The square root of 7122769 is about 2668.8516256997. The cubic root of 7122769 is about 192.4049702426.

It can be divided in two parts, 712 and 2769, that added together give a square (3481 = 59²).

The spelling of 7122769 in words is "seven million, one hundred twenty-two thousand, seven hundred sixty-nine".