3864993 has 16 divisors (see below), whose sum is σ = 5662656. Its totient is φ = 2325440.

The previous prime is 3864979. The next prime is 3865007. The reversal of 3864993 is 3994683.

It is an interprime number because it is at equal distance from previous prime (3864979) and next prime (3865007).

It is a cyclic number.

It is not a de Polignac number, because 3864993 - 2⁴ = 3864977 is a prime.

3864993 is a Rhonda number in base 12.

Its product of digits (139968) is a multiple of the sum of its prime divisors (864).

3864993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3864953) 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 in 15 ways as a sum of consecutive naturals, for example, 5371 + ... + 6047.

It is an arithmetic number, because the mean of its divisors is an integer number (353916).

Almost surely, 2^3864993 is an apocalyptic number.

3864993 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3864993 is a deficient number, since it is larger than the sum of its proper divisors (1797663).

3864993 is a wasteful number, since it uses less digits than its factorization.

3864993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

The product of its digits is 139968, while the sum is 42.

The square root of 3864993 is about 1965.9585448325. The cubic root of 3864993 is about 156.9337083376.

The spelling of 3864993 in words is "three million, eight hundred sixty-four thousand, nine hundred ninety-three".