3642185 has 4 divisors (see below), whose sum is σ = 4370628. Its totient is φ = 2913744.

The previous prime is 3642157. The next prime is 3642203. The reversal of 3642185 is 5812463.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 373321 + 3268864 = 611^2 + 1808^2 .

It is a cyclic number.

It is not a de Polignac number, because 3642185 - 2¹⁶ = 3576649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364214 + ... + 364223.

It is an arithmetic number, because the mean of its divisors is an integer number (1092657).

Almost surely, 2^3642185 is an apocalyptic number.

It is an amenable number.

3642185 is a deficient number, since it is larger than the sum of its proper divisors (728443).

3642185 is an equidigital number, since it uses as much as digits as its factorization.

3642185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728442.

The product of its digits is 5760, while the sum is 29.

The square root of 3642185 is about 1908.4509425186. The cubic root of 3642185 is about 153.8582070364.

The spelling of 3642185 in words is "three million, six hundred forty-two thousand, one hundred eighty-five".