698013 has 6 divisors (see below), whose sum is σ = 1008254. Its totient is φ = 465336.

The previous prime is 697999. The next prime is 698017. The reversal of 698013 is 310896.

It can be written as a sum of positive squares in only one way, i.e., 492804 + 205209 = 702^2 + 453^2 .

It is not a de Polignac number, because 698013 - 2⁸ = 697757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38770 + ... + 38787.

2⁶⁹⁸⁰¹³ is an apocalyptic number.

It is an amenable number.

698013 is a deficient number, since it is larger than the sum of its proper divisors (310241).

698013 is a wasteful number, since it uses less digits than its factorization.

698013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77563 (or 77560 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 698013 is about 835.4717230403. The cubic root of 698013 is about 88.7063079257.

The spelling of 698013 in words is "six hundred ninety-eight thousand, thirteen".