3867745 has 16 divisors (see below), whose sum is σ = 5397120. Its totient is φ = 2605824.

The previous prime is 3867739. The next prime is 3867757. The reversal of 3867745 is 5477683.

It is a cyclic number.

It is not a de Polignac number, because 3867745 - 2⁵ = 3867713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3867698 and 3867707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1129 + ... + 3001.

It is an arithmetic number, because the mean of its divisors is an integer number (337320).

Almost surely, 2^3867745 is an apocalyptic number.

3867745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3867745 is a deficient number, since it is larger than the sum of its proper divisors (1529375).

3867745 is a wasteful number, since it uses less digits than its factorization.

3867745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944.

The product of its digits is 141120, while the sum is 40.

The square root of 3867745 is about 1966.6583333157. The cubic root of 3867745 is about 156.9709467924.

The spelling of 3867745 in words is "three million, eight hundred sixty-seven thousand, seven hundred forty-five".