3647545 has 12 divisors (see below), whose sum is σ = 4811940. Its totient is φ = 2652320.

The previous prime is 3647531. The next prime is 3647551. The reversal of 3647545 is 5457463.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2509056 + 1138489 = 1584^2 + 1067^2 .

It is not a de Polignac number, because 3647545 - 2¹⁵ = 3614777 is a prime.

3647545 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3647545.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2410 + ... + 3619.

It is an arithmetic number, because the mean of its divisors is an integer number (400995).

Almost surely, 2^3647545 is an apocalyptic number.

It is an amenable number.

3647545 is a deficient number, since it is larger than the sum of its proper divisors (1164395).

3647545 is a wasteful number, since it uses less digits than its factorization.

3647545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056 (or 6045 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The square root of 3647545 is about 1909.8547065157. The cubic root of 3647545 is about 153.9336448826.

The spelling of 3647545 in words is "three million, six hundred forty-seven thousand, five hundred forty-five".