698159801 has 2 divisors, whose sum is σ = 698159802. Its totient is φ = 698159800.

The previous prime is 698159741. The next prime is 698159851. The reversal of 698159801 is 108951896.

698159801 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 can be written as a sum of positive squares in only one way, i.e., 561737401 + 136422400 = 23701^2 + 11680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-698159801 is a prime.

It is not a weakly prime, because it can be changed into another prime (698159851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349079900 + 349079901.

It is an arithmetic number, because the mean of its divisors is an integer number (349079901).

Almost surely, 2^698159801 is an apocalyptic number.

It is an amenable number.

698159801 is a deficient number, since it is larger than the sum of its proper divisors (1).

698159801 is an equidigital number, since it uses as much as digits as its factorization.

698159801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 47.

The square root of 698159801 is about 26422.7137326960. The cubic root of 698159801 is about 887.1252617755.

The spelling of 698159801 in words is "six hundred ninety-eight million, one hundred fifty-nine thousand, eight hundred one".