698009013 has 24 divisors (see below), whose sum is σ = 1086703800. Its totient is φ = 429183360.

The previous prime is 698008979. The next prime is 698009027. The reversal of 698009013 is 310900896.

It can be written as a sum of positive squares in 4 ways, for example, as 252714609 + 445294404 = 15897^2 + 21102^2 .

It is not a de Polignac number, because 698009013 - 2⁹ = 698008501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698002013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226503 + ... + 229563.

It is an arithmetic number, because the mean of its divisors is an integer number (45279325).

Almost surely, 2^698009013 is an apocalyptic number.

It is an amenable number.

698009013 is a deficient number, since it is larger than the sum of its proper divisors (388694787).

698009013 is a wasteful number, since it uses less digits than its factorization.

698009013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029 (or 5026 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 698009013 is about 26419.8602002357. The cubic root of 698009013 is about 887.0613903069.

The spelling of 698009013 in words is "six hundred ninety-eight million, nine thousand, thirteen".