3627945 has 12 divisors (see below), whose sum is σ = 6288516. Its totient is φ = 1934880.

The previous prime is 3627941. The next prime is 3627947. The reversal of 3627945 is 5497263.

3627945 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 3143529 = 696^2 + 1773^2 .

It is not a de Polignac number, because 3627945 - 2² = 3627941 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3627941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40266 + ... + 40355.

It is an arithmetic number, because the mean of its divisors is an integer number (524043).

Almost surely, 2^3627945 is an apocalyptic number.

It is an amenable number.

3627945 is a deficient number, since it is larger than the sum of its proper divisors (2660571).

3627945 is a wasteful number, since it uses less digits than its factorization.

3627945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80632 (or 80629 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 3627945 is about 1904.7165143401. The cubic root of 3627945 is about 153.6574299000.

The spelling of 3627945 in words is "three million, six hundred twenty-seven thousand, nine hundred forty-five".