3589981 has 2 divisors, whose sum is σ = 3589982. Its totient is φ = 3589980.

The previous prime is 3589933. The next prime is 3589991. The reversal of 3589981 is 1899853.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3348900 + 241081 = 1830^2 + 491^2 .

It is a cyclic number.

It is not a de Polignac number, because 3589981 - 2⁷ = 3589853 is a prime.

It is a super-2 number, since 2×3589981² = 25775927160722, which contains 22 as substring.

3589981 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3589991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1794990 + 1794991.

It is an arithmetic number, because the mean of its divisors is an integer number (1794991).

Almost surely, 2^3589981 is an apocalyptic number.

It is an amenable number.

3589981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3589981 is an equidigital number, since it uses as much as digits as its factorization.

3589981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The square root of 3589981 is about 1894.7245182348. The cubic root of 3589981 is about 153.1195755957.

The spelling of 3589981 in words is "three million, five hundred eighty-nine thousand, nine hundred eighty-one".