3623866 has 8 divisors (see below), whose sum is σ = 5510484. Its totient is φ = 1787040.

The previous prime is 3623861. The next prime is 3623881. The reversal of 3623866 is 6683263.

It can be written as a sum of positive squares in 2 ways, for example, as 3515625 + 108241 = 1875^2 + 329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3623861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12265 + ... + 12556.

Almost surely, 2^3623866 is an apocalyptic number.

3623866 is a deficient number, since it is larger than the sum of its proper divisors (1886618).

3623866 is a wasteful number, since it uses less digits than its factorization.

3623866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24896.

The product of its digits is 31104, while the sum is 34.

The square root of 3623866 is about 1903.6454501824. The cubic root of 3623866 is about 153.5998211894.

It can be divided in two parts, 3623 and 866, that added together give a square (4489 = 67²).

The spelling of 3623866 in words is "three million, six hundred twenty-three thousand, eight hundred sixty-six".