2021098 has 4 divisors (see below), whose sum is σ = 3031650. Its totient is φ = 1010548.

The previous prime is 2021083. The next prime is 2021099. The reversal of 2021098 is 8901202.

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., 1432809 + 588289 = 1197^2 + 767^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2021099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505273 + ... + 505276.

2^2021098 is an apocalyptic number.

2021098 is a deficient number, since it is larger than the sum of its proper divisors (1010552).

2021098 is a wasteful number, since it uses less digits than its factorization.

2021098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010551.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2021098 is about 1421.6532629302. The cubic root of 2021098 is about 126.4335864521.

The spelling of 2021098 in words is "two million, twenty-one thousand, ninety-eight".