3665594 has 12 divisors (see below), whose sum is σ = 5804154. Its totient is φ = 1735992.

The previous prime is 3665587. The next prime is 3665609. The reversal of 3665594 is 4955663.

It can be written as a sum of positive squares in only one way, i.e., 2140369 + 1525225 = 1463^2 + 1235^2 .

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1817 + ... + 3260.

Almost surely, 2^3665594 is an apocalyptic number.

3665594 is a deficient number, since it is larger than the sum of its proper divisors (2138560).

3665594 is a wasteful number, since it uses less digits than its factorization.

3665594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117 (or 5098 counting only the distinct ones).

The product of its digits is 97200, while the sum is 38.

The square root of 3665594 is about 1914.5741040764. The cubic root of 3665594 is about 154.1871284585.

The spelling of 3665594 in words is "three million, six hundred sixty-five thousand, five hundred ninety-four".