3645235 has 16 divisors (see below), whose sum is σ = 4810752. Its totient is φ = 2629600.

The previous prime is 3645227. The next prime is 3645251. The reversal of 3645235 is 5325463.

It is not a de Polignac number, because 3645235 - 2³ = 3645227 is a prime.

It is a Duffinian number.

3645235 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10332 + ... + 10678.

It is an arithmetic number, because the mean of its divisors is an integer number (300672).

Almost surely, 2^3645235 is an apocalyptic number.

3645235 is the 955-th decagonal number.

3645235 is a deficient number, since it is larger than the sum of its proper divisors (1165517).

3645235 is a wasteful number, since it uses less digits than its factorization.

3645235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554.

The product of its digits is 10800, while the sum is 28.

The square root of 3645235 is about 1909.2498526908. The cubic root of 3645235 is about 153.9011424907.

The spelling of 3645235 in words is "three million, six hundred forty-five thousand, two hundred thirty-five".