3643028 has 12 divisors (see below), whose sum is σ = 6417012. Its totient is φ = 1809600.

The previous prime is 3643001. The next prime is 3643033. The reversal of 3643028 is 8203463.

It can be written as a sum of positive squares in 2 ways, for example, as 2598544 + 1044484 = 1612^2 + 1022^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3642988 and 3643006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2273 + ... + 3528.

It is an arithmetic number, because the mean of its divisors is an integer number (534751).

Almost surely, 2^3643028 is an apocalyptic number.

It is an amenable number.

3643028 is a deficient number, since it is larger than the sum of its proper divisors (2773984).

3643028 is a wasteful number, since it uses less digits than its factorization.

3643028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5962 (or 5960 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 3643028 is about 1908.6717894913. The cubic root of 3643028 is about 153.8700765107.

The spelling of 3643028 in words is "three million, six hundred forty-three thousand, twenty-eight".