698808697 has 2 divisors, whose sum is σ = 698808698. Its totient is φ = 698808696.

The previous prime is 698808689. The next prime is 698808703. The reversal of 698808697 is 796808896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 478909456 + 219899241 = 21884^2 + 14829^2 .

It is a cyclic number.

It is not a de Polignac number, because 698808697 - 2³ = 698808689 is a prime.

It is not a weakly prime, because it can be changed into another prime (698808637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349404348 + 349404349.

It is an arithmetic number, because the mean of its divisors is an integer number (349404349).

Almost surely, 2^698808697 is an apocalyptic number.

It is an amenable number.

698808697 is a deficient number, since it is larger than the sum of its proper divisors (1).

698808697 is an equidigital number, since it uses as much as digits as its factorization.

698808697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The square root of 698808697 is about 26434.9900132381. The cubic root of 698808697 is about 887.4000192073.

The spelling of 698808697 in words is "six hundred ninety-eight million, eight hundred eight thousand, six hundred ninety-seven".