3662881 has 2 divisors, whose sum is σ = 3662882. Its totient is φ = 3662880.

The previous prime is 3662861. The next prime is 3662887. The reversal of 3662881 is 1882663.

3662881 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., 3629025 + 33856 = 1905^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 3662881 - 2⁵ = 3662849 is a prime.

It is a super-2 number, since 2×3662881² = 26833394440322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3662887) 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, 1831440 + 1831441.

It is an arithmetic number, because the mean of its divisors is an integer number (1831441).

Almost surely, 2^3662881 is an apocalyptic number.

It is an amenable number.

3662881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3662881 is an equidigital number, since it uses as much as digits as its factorization.

3662881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 34.

The square root of 3662881 is about 1913.8654602662. The cubic root of 3662881 is about 154.1490797891.

The spelling of 3662881 in words is "three million, six hundred sixty-two thousand, eight hundred eighty-one".