699742291 has 2 divisors, whose sum is σ = 699742292. Its totient is φ = 699742290.

The previous prime is 699742243. The next prime is 699742319. The reversal of 699742291 is 192247996.

699742291 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 699742291 - 2¹¹ = 699740243 is a prime.

It is not a weakly prime, because it can be changed into another prime (699742201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349871145 + 349871146.

It is an arithmetic number, because the mean of its divisors is an integer number (349871146).

Almost surely, 2^699742291 is an apocalyptic number.

699742291 is a deficient number, since it is larger than the sum of its proper divisors (1).

699742291 is an equidigital number, since it uses as much as digits as its factorization.

699742291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 699742291 is about 26452.6424199928. The cubic root of 699742291 is about 887.7950260575.

The spelling of 699742291 in words is "six hundred ninety-nine million, seven hundred forty-two thousand, two hundred ninety-one".