3866345 has 24 divisors (see below), whose sum is σ = 5537664. Its totient is φ = 2582496.

The previous prime is 3866333. The next prime is 3866393. The reversal of 3866345 is 5436683.

It is not a de Polignac number, because 3866345 - 2⁶ = 3866281 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10352 + ... + 10718.

It is an arithmetic number, because the mean of its divisors is an integer number (230736).

Almost surely, 2^3866345 is an apocalyptic number.

3866345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3866345 is a deficient number, since it is larger than the sum of its proper divisors (1671319).

3866345 is a wasteful number, since it uses less digits than its factorization.

3866345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 422 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 3866345 is about 1966.3023673891. The cubic root of 3866345 is about 156.9520050192.

The spelling of 3866345 in words is "three million, eight hundred sixty-six thousand, three hundred forty-five".