698944 has 28 divisors (see below), whose sum is σ = 1416304. Its totient is φ = 342144.

The previous prime is 698939. The next prime is 698977. The reversal of 698944 is 449896.

It is a nialpdrome in base 4 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 698897 and 698906.

It is an unprimeable number.

698944 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4207 + ... + 4369.

2⁶⁹⁸⁹⁴⁴ is an apocalyptic number.

698944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708152).

698944 is an abundant number, since it is smaller than the sum of its proper divisors (717360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

698944 is a wasteful number, since it uses less digits than its factorization.

698944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 232 counting only the distinct ones).

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

The square root of 698944 is about 836.0287076411. The cubic root of 698944 is about 88.7457288165.

The spelling of 698944 in words is "six hundred ninety-eight thousand, nine hundred forty-four".