699360769 has 2 divisors, whose sum is σ = 699360770. Its totient is φ = 699360768.

The previous prime is 699360749. The next prime is 699360817. The reversal of 699360769 is 967063996.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 571783744 + 127577025 = 23912^2 + 11295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-699360769 is a prime.

It is a super-2 number, since 2×699360769² = 978210970432542722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (699360709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349680384 + 349680385.

It is an arithmetic number, because the mean of its divisors is an integer number (349680385).

Almost surely, 2^699360769 is an apocalyptic number.

It is an amenable number.

699360769 is a deficient number, since it is larger than the sum of its proper divisors (1).

699360769 is an equidigital number, since it uses as much as digits as its factorization.

699360769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 55.

The square root of 699360769 is about 26445.4300210830. The cubic root of 699360769 is about 887.6336452577.

The spelling of 699360769 in words is "six hundred ninety-nine million, three hundred sixty thousand, seven hundred sixty-nine".