698742 has 24 divisors (see below), whose sum is σ = 1652040. Its totient is φ = 211680.

The previous prime is 698729. The next prime is 698773. The reversal of 698742 is 247896.

It is a d-powerful number, because it can be written as 6² + 9⁶ + 7⁴ + 8⁵ + 4⁵ + 2¹⁷ .

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 698697 and 698706.

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 698742.

It is an unprimeable number.

698742 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1567 + ... + 1962.

It is an arithmetic number, because the mean of its divisors is an integer number (68835).

2⁶⁹⁸⁷⁴² is an apocalyptic number.

698742 is an abundant number, since it is smaller than the sum of its proper divisors (953298).

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

698742 is a wasteful number, since it uses less digits than its factorization.

698742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548 (or 3545 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 698742 is about 835.9078896625. The cubic root of 698742 is about 88.7371786014.

The spelling of 698742 in words is "six hundred ninety-eight thousand, seven hundred forty-two".