988090 has 8 divisors (see below), whose sum is σ = 1778580. Its totient is φ = 395232.

The previous prime is 988069. The next prime is 988093. The reversal of 988090 is 90889.

It can be written as a sum of positive squares in 2 ways, for example, as 851929 + 136161 = 923^2 + 369^2 .

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

It is not an unprimeable number, because it can be changed into a prime (988093) by changing a digit.

988090 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49395 + ... + 49414.

2⁹⁸⁸⁰⁹⁰ is an apocalyptic number.

988090 is a deficient number, since it is larger than the sum of its proper divisors (790490).

988090 is a wasteful number, since it uses less digits than its factorization.

988090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98816.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 988090 is about 994.0271626067. The cubic root of 988090 is about 99.6014133980.

The spelling of 988090 in words is "nine hundred eighty-eight thousand, ninety".