7172369 has 2 divisors, whose sum is σ = 7172370. Its totient is φ = 7172368.

The previous prime is 7172327. The next prime is 7172383. The reversal of 7172369 is 9632717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4326400 + 2845969 = 2080^2 + 1687^2 .

It is an emirp because it is prime and its reverse (9632717) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7172369 is a prime.

It is a super-2 number, since 2×7172369² = 102885754144322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7172569) 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, 3586184 + 3586185.

It is an arithmetic number, because the mean of its divisors is an integer number (3586185).

Almost surely, 2^7172369 is an apocalyptic number.

It is an amenable number.

7172369 is a deficient number, since it is larger than the sum of its proper divisors (1).

7172369 is an equidigital number, since it uses as much as digits as its factorization.

7172369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 35.

The square root of 7172369 is about 2678.1278908969. The cubic root of 7172369 is about 192.8505469558.

The spelling of 7172369 in words is "seven million, one hundred seventy-two thousand, three hundred sixty-nine".