699742319 has 2 divisors, whose sum is σ = 699742320. Its totient is φ = 699742318.

The previous prime is 699742291. The next prime is 699742327. The reversal of 699742319 is 913247996.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-699742319 is a prime.

It is a super-2 number, since 2×699742319² = 979278625998995522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699742339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349871159 + 349871160.

It is an arithmetic number, because the mean of its divisors is an integer number (349871160).

Almost surely, 2^699742319 is an apocalyptic number.

699742319 is a deficient number, since it is larger than the sum of its proper divisors (1).

699742319 is an equidigital number, since it uses as much as digits as its factorization.

699742319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The square root of 699742319 is about 26452.6429492404. The cubic root of 699742319 is about 887.7950378991.

The spelling of 699742319 in words is "six hundred ninety-nine million, seven hundred forty-two thousand, three hundred nineteen".