3645968 has 10 divisors (see below), whose sum is σ = 7064094. Its totient is φ = 1822976.

The previous prime is 3645959. The next prime is 3645977. The reversal of 3645968 is 8695463.

It is an interprime number because it is at equal distance from previous prime (3645959) and next prime (3645977).

It can be written as a sum of positive squares in only one way, i.e., 1882384 + 1763584 = 1372^2 + 1328^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113921 + ... + 113952.

Almost surely, 2^3645968 is an apocalyptic number.

It is an amenable number.

3645968 is a deficient number, since it is larger than the sum of its proper divisors (3418126).

3645968 is a wasteful number, since it uses less digits than its factorization.

3645968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227881 (or 227875 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 3645968 is about 1909.4418032504. The cubic root of 3645968 is about 153.9114575072.

The spelling of 3645968 in words is "three million, six hundred forty-five thousand, nine hundred sixty-eight".