2983981 has 24 divisors (see below), whose sum is σ = 4051712. Its totient is φ = 2138400.

The previous prime is 2983961. The next prime is 2983987. The reversal of 2983981 is 1893892.

It is not a de Polignac number, because 2983981 - 2⁵ = 2983949 is a prime.

It is a super-2 number, since 2×2983981² = 17808285216722, which contains 22 as substring.

2983981 is a lucky number.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2983987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10876 + ... + 11146.

2^2983981 is an apocalyptic number.

It is an amenable number.

2983981 is a deficient number, since it is larger than the sum of its proper divisors (1067731).

2983981 is a wasteful number, since it uses less digits than its factorization.

2983981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 302 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 2983981 is about 1727.4203310139. The cubic root of 2983981 is about 143.9677943667.

The spelling of 2983981 in words is "two million, nine hundred eighty-three thousand, nine hundred eighty-one".