3959880 has 32 divisors (see below), whose sum is σ = 11880000. Its totient is φ = 1055936.

The previous prime is 3959873. The next prime is 3959899. The reversal of 3959880 is 889593.

It is a super-2 number, since 2×3959880² = 31361299228800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16380 + ... + 16619.

It is an arithmetic number, because the mean of its divisors is an integer number (371250).

Almost surely, 2^3959880 is an apocalyptic number.

3959880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3959880 is an abundant number, since it is smaller than the sum of its proper divisors (7920120).

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

3959880 is a wasteful number, since it uses less digits than its factorization.

3959880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33013 (or 33009 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 3959880 is about 1989.9447228504. The cubic root of 3959880 is about 158.2075997805.

The spelling of 3959880 in words is "three million, nine hundred fifty-nine thousand, eight hundred eighty".