698869271 has 2 divisors, whose sum is σ = 698869272. Its totient is φ = 698869270.

The previous prime is 698869261. The next prime is 698869277. The reversal of 698869271 is 172968896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 698869271 - 2¹⁴ = 698852887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698869277) 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, 349434635 + 349434636.

It is an arithmetic number, because the mean of its divisors is an integer number (349434636).

Almost surely, 2^698869271 is an apocalyptic number.

698869271 is a deficient number, since it is larger than the sum of its proper divisors (1).

698869271 is an equidigital number, since it uses as much as digits as its factorization.

698869271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 56.

The square root of 698869271 is about 26436.1357047508. The cubic root of 698869271 is about 887.4256589453.

The spelling of 698869271 in words is "six hundred ninety-eight million, eight hundred sixty-nine thousand, two hundred seventy-one".