3635980 has 24 divisors (see below), whose sum is σ = 7697088. Its totient is φ = 1442688.

The previous prime is 3635971. The next prime is 3635987. The reversal of 3635980 is 895363.

It is not an unprimeable number, because it can be changed into a prime (3635987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2077 + ... + 3403.

It is an arithmetic number, because the mean of its divisors is an integer number (320712).

Almost surely, 2^3635980 is an apocalyptic number.

It is an amenable number.

3635980 is an abundant number, since it is smaller than the sum of its proper divisors (4061108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3635980 is a wasteful number, since it uses less digits than its factorization.

3635980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473 (or 1471 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3635980 is about 1906.8245855348. The cubic root of 3635980 is about 153.7707839795.

The spelling of 3635980 in words is "three million, six hundred thirty-five thousand, nine hundred eighty".