698986 has 4 divisors (see below), whose sum is σ = 1048482. Its totient is φ = 349492.

The previous prime is 698983. The next prime is 699001. The reversal of 698986 is 689896.

It is a happy number.

698986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 463761 + 235225 = 681^2 + 485^2 .

It is not an unprimeable number, because it can be changed into a prime (698983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174745 + ... + 174748.

2⁶⁹⁸⁹⁸⁶ is an apocalyptic number.

698986 is a deficient number, since it is larger than the sum of its proper divisors (349496).

698986 is a wasteful number, since it uses less digits than its factorization.

698986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349495.

The product of its digits is 186624, while the sum is 46.

The square root of 698986 is about 836.0538260184. The cubic root of 698986 is about 88.7475063771.

The spelling of 698986 in words is "six hundred ninety-eight thousand, nine hundred eighty-six".