3807645 has 16 divisors (see below), whose sum is σ = 6119232. Its totient is φ = 2021760.

The previous prime is 3807593. The next prime is 3807647. The reversal of 3807645 is 5467083.

It is not a de Polignac number, because 3807645 - 2¹⁴ = 3791261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3807647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4290 + ... + 5100.

It is an arithmetic number, because the mean of its divisors is an integer number (382452).

Almost surely, 2^3807645 is an apocalyptic number.

It is an amenable number.

3807645 is a deficient number, since it is larger than the sum of its proper divisors (2311587).

3807645 is a wasteful number, since it uses less digits than its factorization.

3807645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 3807645 is about 1951.3187848222. The cubic root of 3807645 is about 156.1536536701.

The spelling of 3807645 in words is "three million, eight hundred seven thousand, six hundred forty-five".