698997 has 8 divisors (see below), whose sum is σ = 1003744. Its totient is φ = 430128.

The previous prime is 698983. The next prime is 699001. The reversal of 698997 is 799896.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 698997 - 2¹⁰ = 697973 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8923 + ... + 9000.

It is an arithmetic number, because the mean of its divisors is an integer number (125468).

2⁶⁹⁸⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

698997 is a deficient number, since it is larger than the sum of its proper divisors (304747).

698997 is a wasteful number, since it uses less digits than its factorization.

698997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17939.

The product of its digits is 244944, while the sum is 48.

The square root of 698997 is about 836.0604045163. The cubic root of 698997 is about 88.7479719169.

The spelling of 698997 in words is "six hundred ninety-eight thousand, nine hundred ninety-seven".