3623881 has 2 divisors, whose sum is σ = 3623882. Its totient is φ = 3623880.

The previous prime is 3623861. The next prime is 3623887. The reversal of 3623881 is 1883263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2433600 + 1190281 = 1560^2 + 1091^2 .

It is a cyclic number.

It is not a de Polignac number, because 3623881 - 2⁹ = 3623369 is a prime.

It is a super-2 number, since 2×3623881² = 26265027004322, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3623887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1811940 + 1811941.

It is an arithmetic number, because the mean of its divisors is an integer number (1811941).

Almost surely, 2^3623881 is an apocalyptic number.

It is an amenable number.

3623881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3623881 is an equidigital number, since it uses as much as digits as its factorization.

3623881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 3623881 is about 1903.6493899876. The cubic root of 3623881 is about 153.6000331172.

The spelling of 3623881 in words is "three million, six hundred twenty-three thousand, eight hundred eighty-one".