987898 has 8 divisors (see below), whose sum is σ = 1490580. Its totient is φ = 491040.

The previous prime is 987869. The next prime is 987911. The reversal of 987898 is 898789.

987898 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 986049 + 1849 = 993^2 + 43^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003 + ... + 1726.

2⁹⁸⁷⁸⁹⁸ is an apocalyptic number.

987898 is a deficient number, since it is larger than the sum of its proper divisors (502682).

987898 is a wasteful number, since it uses less digits than its factorization.

987898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912.

The product of its digits is 290304, while the sum is 49.

The square root of 987898 is about 993.9305810770. The cubic root of 987898 is about 99.5949616544.

The spelling of 987898 in words is "nine hundred eighty-seven thousand, eight hundred ninety-eight".