698863 has 4 divisors (see below), whose sum is σ = 762408. Its totient is φ = 635320.

The previous prime is 698849. The next prime is 698891. The reversal of 698863 is 368896.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-698863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31756 + ... + 31777.

It is an arithmetic number, because the mean of its divisors is an integer number (190602).

2⁶⁹⁸⁸⁶³ is an apocalyptic number.

698863 is a deficient number, since it is larger than the sum of its proper divisors (63545).

698863 is a wasteful number, since it uses less digits than its factorization.

698863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63544.

The product of its digits is 62208, while the sum is 40.

The square root of 698863 is about 835.9802629249. The cubic root of 698863 is about 88.7423004628.

The spelling of 698863 in words is "six hundred ninety-eight thousand, eight hundred sixty-three".