3684745 has 8 divisors (see below), whose sum is σ = 4462920. Its totient is φ = 2920320.

The previous prime is 3684721. The next prime is 3684749. The reversal of 3684745 is 5474863.

It can be written as a sum of positive squares in 4 ways, for example, as 1115136 + 2569609 = 1056^2 + 1603^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3684745 - 2¹³ = 3676553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3684749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2836 + ... + 3925.

It is an arithmetic number, because the mean of its divisors is an integer number (557865).

Almost surely, 2^3684745 is an apocalyptic number.

It is an amenable number.

3684745 is a deficient number, since it is larger than the sum of its proper divisors (778175).

3684745 is a wasteful number, since it uses less digits than its factorization.

3684745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875.

The product of its digits is 80640, while the sum is 37.

The square root of 3684745 is about 1919.5689620329. The cubic root of 3684745 is about 154.4551805283.

The spelling of 3684745 in words is "three million, six hundred eighty-four thousand, seven hundred forty-five".