698080871 has 2 divisors, whose sum is σ = 698080872. Its totient is φ = 698080870.

The previous prime is 698080849. The next prime is 698080907. The reversal of 698080871 is 178080896.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 698080871 - 2¹⁰ = 698079847 is a prime.

It is a super-2 number, since 2×698080871² = 974633804912237282, 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 (698080811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349040435 + 349040436.

It is an arithmetic number, because the mean of its divisors is an integer number (349040436).

Almost surely, 2^698080871 is an apocalyptic number.

698080871 is a deficient number, since it is larger than the sum of its proper divisors (1).

698080871 is an equidigital number, since it uses as much as digits as its factorization.

698080871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 698080871 is about 26421.2200891632. The cubic root of 698080871 is about 887.0918293934.

The spelling of 698080871 in words is "six hundred ninety-eight million, eighty thousand, eight hundred seventy-one".