698000869 has 2 divisors, whose sum is σ = 698000870. Its totient is φ = 698000868.

The previous prime is 698000861. The next prime is 698000899. The reversal of 698000869 is 968000896.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 543495969 + 154504900 = 23313^2 + 12430^2 .

It is a cyclic number.

It is not a de Polignac number, because 698000869 - 2³ = 698000861 is a prime.

It is a super-2 number, since 2×698000869² = 974410426249510322, which contains 22 as substring.

698000869 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698000861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349000434 + 349000435.

It is an arithmetic number, because the mean of its divisors is an integer number (349000435).

Almost surely, 2^698000869 is an apocalyptic number.

It is an amenable number.

698000869 is a deficient number, since it is larger than the sum of its proper divisors (1).

698000869 is an equidigital number, since it uses as much as digits as its factorization.

698000869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 698000869 is about 26419.7060733082. The cubic root of 698000869 is about 887.0579403724.

The spelling of 698000869 in words is "six hundred ninety-eight million, eight hundred sixty-nine", and thus it is an aban number.