699966247 has 2 divisors, whose sum is σ = 699966248. Its totient is φ = 699966246.

The previous prime is 699966229. The next prime is 699966263. The reversal of 699966247 is 742669996.

699966247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 699966247 - 2⁷ = 699966119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 699966191 and 699966200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699966947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349983123 + 349983124.

It is an arithmetic number, because the mean of its divisors is an integer number (349983124).

Almost surely, 2^699966247 is an apocalyptic number.

699966247 is a deficient number, since it is larger than the sum of its proper divisors (1).

699966247 is an equidigital number, since it uses as much as digits as its factorization.

699966247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8817984, while the sum is 58.

The square root of 699966247 is about 26456.8752312135. The cubic root of 699966247 is about 887.8897303590.

The spelling of 699966247 in words is "six hundred ninety-nine million, nine hundred sixty-six thousand, two hundred forty-seven".