2983621 has 2 divisors, whose sum is σ = 2983622. Its totient is φ = 2983620.

The previous prime is 2983597. The next prime is 2983639. The reversal of 2983621 is 1263892.

2983621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2722500 + 261121 = 1650^2 + 511^2 .

It is a cyclic number.

It is not a de Polignac number, because 2983621 - 2⁷ = 2983493 is a prime.

2983621 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2983661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1491810 + 1491811.

It is an arithmetic number, because the mean of its divisors is an integer number (1491811).

2^2983621 is an apocalyptic number.

It is an amenable number.

2983621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2983621 is an equidigital number, since it uses as much as digits as its factorization.

2983621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 2983621 is about 1727.3161262490. The cubic root of 2983621 is about 143.9620045074.

The spelling of 2983621 in words is "two million, nine hundred eighty-three thousand, six hundred twenty-one".