2026981 has 4 divisors (see below), whose sum is σ = 2211264. Its totient is φ = 1842700.

The previous prime is 2026957. The next prime is 2026987. The reversal of 2026981 is 1896202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2026981 - 2⁹ = 2026469 is a prime.

It is a super-2 number, since 2×2026981² = 8217303948722, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2026987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92125 + ... + 92146.

It is an arithmetic number, because the mean of its divisors is an integer number (552816).

2^2026981 is an apocalyptic number.

It is an amenable number.

2026981 is a deficient number, since it is larger than the sum of its proper divisors (184283).

2026981 is a wasteful number, since it uses less digits than its factorization.

2026981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184282.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2026981 is about 1423.7208293763. The cubic root of 2026981 is about 126.5561416610.

The spelling of 2026981 in words is "two million, twenty-six thousand, nine hundred eighty-one".