697964249 has 2 divisors, whose sum is σ = 697964250. Its totient is φ = 697964248.

The previous prime is 697964243. The next prime is 697964269. The reversal of 697964249 is 942469796.

697964249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 623401024 + 74563225 = 24968^2 + 8635^2 .

It is a cyclic number.

It is not a de Polignac number, because 697964249 - 2²⁴ = 681187033 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 697964194 and 697964203.

It is not a weakly prime, because it can be changed into another prime (697964243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348982124 + 348982125.

It is an arithmetic number, because the mean of its divisors is an integer number (348982125).

Almost surely, 2^697964249 is an apocalyptic number.

It is an amenable number.

697964249 is a deficient number, since it is larger than the sum of its proper divisors (1).

697964249 is an equidigital number, since it uses as much as digits as its factorization.

697964249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 56.

The square root of 697964249 is about 26419.0130209287. The cubic root of 697964249 is about 887.0424271969.

The spelling of 697964249 in words is "six hundred ninety-seven million, nine hundred sixty-four thousand, two hundred forty-nine".