2980981 has 2 divisors, whose sum is σ = 2980982. Its totient is φ = 2980980.

The previous prime is 2980973. The next prime is 2980993. The reversal of 2980981 is 1890892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1562500 + 1418481 = 1250^2 + 1191^2 .

It is a cyclic number.

It is not a de Polignac number, because 2980981 - 2³ = 2980973 is a prime.

It is a super-2 number, since 2×2980981² = 17772495444722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2980981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2980921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1490490 + 1490491.

It is an arithmetic number, because the mean of its divisors is an integer number (1490491).

2^2980981 is an apocalyptic number.

It is an amenable number.

2980981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2980981 is an equidigital number, since it uses as much as digits as its factorization.

2980981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 2980981 is about 1726.5517658037. The cubic root of 2980981 is about 143.9195313019.

It can be divided in two parts, 29809 and 81, that added together give a triangular number (29890 = T₂₄₄).

The spelling of 2980981 in words is "two million, nine hundred eighty thousand, nine hundred eighty-one".