698019013 has 2 divisors, whose sum is σ = 698019014. Its totient is φ = 698019012.

The previous prime is 698019011. The next prime is 698019059. The reversal of 698019013 is 310910896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 558944164 + 139074849 = 23642^2 + 11793^2 .

It is a cyclic number.

It is not a de Polignac number, because 698019013 - 2¹ = 698019011 is a prime.

Together with 698019011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698019011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349009506 + 349009507.

It is an arithmetic number, because the mean of its divisors is an integer number (349009507).

Almost surely, 2^698019013 is an apocalyptic number.

It is an amenable number.

698019013 is a deficient number, since it is larger than the sum of its proper divisors (1).

698019013 is an equidigital number, since it uses as much as digits as its factorization.

698019013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 698019013 is about 26420.0494511271. The cubic root of 698019013 is about 887.0656264373.

The spelling of 698019013 in words is "six hundred ninety-eight million, nineteen thousand, thirteen".