3645706 has 16 divisors (see below), whose sum is σ = 5702400. Its totient is φ = 1745968.

The previous prime is 3645703. The next prime is 3645709. The reversal of 3645706 is 6075463.

It is an interprime number because it is at equal distance from previous prime (3645703) and next prime (3645709).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3645703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13731 + ... + 13993.

It is an arithmetic number, because the mean of its divisors is an integer number (356400).

Almost surely, 2^3645706 is an apocalyptic number.

3645706 is a deficient number, since it is larger than the sum of its proper divisors (2056694).

3645706 is a wasteful number, since it uses less digits than its factorization.

3645706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 3645706 is about 1909.3731955802. The cubic root of 3645706 is about 153.9077707160.

The spelling of 3645706 in words is "three million, six hundred forty-five thousand, seven hundred six".