3690345 has 16 divisors (see below), whose sum is σ = 5929920. Its totient is φ = 1959744.

The previous prime is 3690341. The next prime is 3690347. The reversal of 3690345 is 5430963.

It is a happy number.

It is not a de Polignac number, because 3690345 - 2² = 3690341 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3690341) 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, 4851 + ... + 5559.

It is an arithmetic number, because the mean of its divisors is an integer number (370620).

Almost surely, 2^3690345 is an apocalyptic number.

It is an amenable number.

3690345 is a deficient number, since it is larger than the sum of its proper divisors (2239575).

3690345 is a wasteful number, since it uses less digits than its factorization.

3690345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 3690345 is about 1921.0270690441. The cubic root of 3690345 is about 154.5333868631.

The spelling of 3690345 in words is "three million, six hundred ninety thousand, three hundred forty-five".