698351 has 4 divisors (see below), whose sum is σ = 700872. Its totient is φ = 695832.

The previous prime is 698339. The next prime is 698359. The reversal of 698351 is 153896.

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

It is a cyclic number.

It is not a de Polignac number, because 698351 - 2⁶ = 698287 is a prime.

It is a Duffinian number.

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 698351.

It is not an unprimeable number, because it can be changed into a prime (698359) 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, 785 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (175218).

2⁶⁹⁸³⁵¹ is an apocalyptic number.

698351 is a deficient number, since it is larger than the sum of its proper divisors (2521).

698351 is a wasteful number, since it uses less digits than its factorization.

698351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520.

The product of its digits is 6480, while the sum is 32.

The square root of 698351 is about 835.6739794920. The cubic root of 698351 is about 88.7206237497.

The spelling of 698351 in words is "six hundred ninety-eight thousand, three hundred fifty-one".