699447347 has 2 divisors, whose sum is σ = 699447348. Its totient is φ = 699447346.

The previous prime is 699447299. The next prime is 699447349. The reversal of 699447347 is 743744996.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 699447347 - 2²² = 695253043 is a prime.

Together with 699447349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (699447349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349723673 + 349723674.

It is an arithmetic number, because the mean of its divisors is an integer number (349723674).

Almost surely, 2^699447347 is an apocalyptic number.

699447347 is a deficient number, since it is larger than the sum of its proper divisors (1).

699447347 is an equidigital number, since it uses as much as digits as its factorization.

699447347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 53.

The square root of 699447347 is about 26447.0668884094. The cubic root of 699447347 is about 887.6702722168.

The spelling of 699447347 in words is "six hundred ninety-nine million, four hundred forty-seven thousand, three hundred forty-seven".