698845 has 16 divisors (see below), whose sum is σ = 983808. Its totient is φ = 466560.

The previous prime is 698827. The next prime is 698849. The reversal of 698845 is 548896.

It is a de Polignac number, because none of the positive numbers 2^k-698845 is a prime.

Its product of digits (69120) is a multiple of the sum of its prime divisors (540).

698845 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 698798 and 698807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1192 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (61488).

2⁶⁹⁸⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

698845 is a deficient number, since it is larger than the sum of its proper divisors (284963).

698845 is a wasteful number, since it uses less digits than its factorization.

698845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its digits is 69120, while the sum is 40.

The square root of 698845 is about 835.9694970512. The cubic root of 698845 is about 88.7415385704.

The spelling of 698845 in words is "six hundred ninety-eight thousand, eight hundred forty-five".