3880521 has 16 divisors (see below), whose sum is σ = 5809920. Its totient is φ = 2559600.

The previous prime is 3880517. The next prime is 3880543. The reversal of 3880521 is 1250883.

It is a happy number.

It is not a de Polignac number, because 3880521 - 2² = 3880517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

3880521 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3880561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2016 + ... + 3438.

It is an arithmetic number, because the mean of its divisors is an integer number (363120).

Almost surely, 2^3880521 is an apocalyptic number.

It is an amenable number.

3880521 is a deficient number, since it is larger than the sum of its proper divisors (1929399).

3880521 is a wasteful number, since it uses less digits than its factorization.

3880521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1527 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 3880521 is about 1969.9038047580. The cubic root of 3880521 is about 157.1435931882.

The spelling of 3880521 in words is "three million, eight hundred eighty thousand, five hundred twenty-one".