698398 has 4 divisors (see below), whose sum is σ = 1047600. Its totient is φ = 349198.

The previous prime is 698393. The next prime is 698413. The reversal of 698398 is 893896.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698393) by changing a digit.

698398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174598 + ... + 174601.

It is an arithmetic number, because the mean of its divisors is an integer number (261900).

2⁶⁹⁸³⁹⁸ is an apocalyptic number.

698398 is a deficient number, since it is larger than the sum of its proper divisors (349202).

698398 is a wasteful number, since it uses less digits than its factorization.

698398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349201.

The product of its digits is 93312, while the sum is 43.

The square root of 698398 is about 835.7021000333. The cubic root of 698398 is about 88.7226140458.

The spelling of 698398 in words is "six hundred ninety-eight thousand, three hundred ninety-eight".