698049 has 18 divisors (see below), whose sum is σ = 1110018. Its totient is φ = 422400.

The previous prime is 698039. The next prime is 698051. The reversal of 698049 is 940896.

It can be written as a sum of positive squares in only one way, i.e., 680625 + 17424 = 825^2 + 132^2 .

It is not a de Polignac number, because 698049 - 2⁵ = 698017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (698039) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 769 + ... + 1409.

2⁶⁹⁸⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

698049 is a deficient number, since it is larger than the sum of its proper divisors (411969).

698049 is a wasteful number, since it uses less digits than its factorization.

698049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 698049 is about 835.4932674774. The cubic root of 698049 is about 88.7078329079.

It can be divided in two parts, 69 and 8049, that added together give a palindrome (8118).

The spelling of 698049 in words is "six hundred ninety-eight thousand, forty-nine".