697306042249 has 2 divisors, whose sum is σ = 697306042250. Its totient is φ = 697306042248.

The previous prime is 697306042229. The next prime is 697306042309. The reversal of 697306042249 is 942240603796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518173944649 + 179132097600 = 719843^2 + 423240^2 .

It is a cyclic number.

It is not a de Polignac number, because 697306042249 - 2³⁵ = 662946303881 is a prime.

It is a super-3 number, since 3×697306042249³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 697306042196 and 697306042205.

It is not a weakly prime, because it can be changed into another prime (697306042229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348653021124 + 348653021125.

It is an arithmetic number, because the mean of its divisors is an integer number (348653021125).

Almost surely, 2^697306042249 is an apocalyptic number.

It is an amenable number.

697306042249 is a deficient number, since it is larger than the sum of its proper divisors (1).

697306042249 is an equidigital number, since it uses as much as digits as its factorization.

697306042249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 52.

The spelling of 697306042249 in words is "six hundred ninety-seven billion, three hundred six million, forty-two thousand, two hundred forty-nine".