3645735 has 36 divisors (see below), whose sum is σ = 6417528. Its totient is φ = 1766912.

The previous prime is 3645731. The next prime is 3645737. The reversal of 3645735 is 5375463.

It is not a de Polignac number, because 3645735 - 2² = 3645731 is a prime.

It is a d-powerful number, because it can be written as 3⁹ + 6³ + 4⁴ + 5⁷ + 7 + 3¹³ + 5⁹ .

Its product of digits (37800) is a multiple of the sum of its prime divisors (54).

It is a junction number, because it is equal to n+sod(n) for n = 3645696 and 3645705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645731) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 125701 + ... + 125729.

Almost surely, 2^3645735 is an apocalyptic number.

3645735 is a deficient number, since it is larger than the sum of its proper divisors (2771793).

3645735 is a wasteful number, since it uses less digits than its factorization.

3645735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 54 counting only the distinct ones).

The product of its digits is 37800, while the sum is 33.

The square root of 3645735 is about 1909.3807896803. The cubic root of 3645735 is about 153.9081788046.

The spelling of 3645735 in words is "three million, six hundred forty-five thousand, seven hundred thirty-five".