3866618 has 8 divisors (see below), whose sum is σ = 6628512. Its totient is φ = 1657116.

The previous prime is 3866617. The next prime is 3866623. The reversal of 3866618 is 8166683.

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 (3866617) 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, 138080 + ... + 138107.

It is an arithmetic number, because the mean of its divisors is an integer number (828564).

Almost surely, 2^3866618 is an apocalyptic number.

3866618 is a deficient number, since it is larger than the sum of its proper divisors (2761894).

3866618 is a wasteful number, since it uses less digits than its factorization.

3866618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276196.

The product of its digits is 41472, while the sum is 38.

The square root of 3866618 is about 1966.3717858025. The cubic root of 3866618 is about 156.9556990238.

The spelling of 3866618 in words is "three million, eight hundred sixty-six thousand, six hundred eighteen".