698426 has 8 divisors (see below), whose sum is σ = 1055700. Its totient is φ = 346528.

The previous prime is 698419. The next prime is 698437. The reversal of 698426 is 624896.

It can be written as a sum of positive squares in 2 ways, for example, as 638401 + 60025 = 799^2 + 245^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 698426.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001 + ... + 1548.

2⁶⁹⁸⁴²⁶ is an apocalyptic number.

698426 is a deficient number, since it is larger than the sum of its proper divisors (357274).

698426 is a wasteful number, since it uses less digits than its factorization.

698426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688.

The product of its digits is 20736, while the sum is 35.

The square root of 698426 is about 835.7188522464. The cubic root of 698426 is about 88.7237997117.

The spelling of 698426 in words is "six hundred ninety-eight thousand, four hundred twenty-six".