69697321 has 2 divisors, whose sum is σ = 69697322. Its totient is φ = 69697320.

The previous prime is 69697267. The next prime is 69697343. The reversal of 69697321 is 12379696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42771600 + 26925721 = 6540^2 + 5189^2 .

It is a cyclic number.

It is not a de Polignac number, because 69697321 - 2¹¹ = 69695273 is a prime.

It is not a weakly prime, because it can be changed into another prime (69697351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34848660 + 34848661.

It is an arithmetic number, because the mean of its divisors is an integer number (34848661).

Almost surely, 2^69697321 is an apocalyptic number.

It is an amenable number.

69697321 is a deficient number, since it is larger than the sum of its proper divisors (1).

69697321 is an equidigital number, since it uses as much as digits as its factorization.

69697321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 43.

The square root of 69697321 is about 8348.4921393028. The cubic root of 69697321 is about 411.5336591255.

The spelling of 69697321 in words is "sixty-nine million, six hundred ninety-seven thousand, three hundred twenty-one".