7212343669 has 2 divisors, whose sum is σ = 7212343670. Its totient is φ = 7212343668.

The previous prime is 7212343651. The next prime is 7212343673. The reversal of 7212343669 is 9663432127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6817804900 + 394538769 = 82570^2 + 19863^2 .

It is a cyclic number.

It is not a de Polignac number, because 7212343669 - 2¹⁵ = 7212310901 is a prime.

It is a super-2 number, since 2×7212343669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7212343639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606171834 + 3606171835.

It is an arithmetic number, because the mean of its divisors is an integer number (3606171835).

Almost surely, 2^7212343669 is an apocalyptic number.

It is an amenable number.

7212343669 is a deficient number, since it is larger than the sum of its proper divisors (1).

7212343669 is an equidigital number, since it uses as much as digits as its factorization.

7212343669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The square root of 7212343669 is about 84925.5183616797. The cubic root of 7212343669 is about 1932.0816282218.

The spelling of 7212343669 in words is "seven billion, two hundred twelve million, three hundred forty-three thousand, six hundred sixty-nine".