698906 has 8 divisors (see below), whose sum is σ = 1129044. Its totient is φ = 322560.

The previous prime is 698903. The next prime is 698923. The reversal of 698906 is 609896.

It can be written as a sum of positive squares in 2 ways, for example, as 697225 + 1681 = 835^2 + 41^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 698906.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 698906.

It is not an unprimeable number, because it can be changed into a prime (698903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13415 + ... + 13466.

2⁶⁹⁸⁹⁰⁶ is an apocalyptic number.

698906 is a deficient number, since it is larger than the sum of its proper divisors (430138).

698906 is a wasteful number, since it uses less digits than its factorization.

698906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26896.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 698906 is about 836.0059808399. The cubic root of 698906 is about 88.7441204860.

It can be divided in two parts, 69890 and 6, that added together give a palindrome (69896).

The spelling of 698906 in words is "six hundred ninety-eight thousand, nine hundred six".