3991088 has 20 divisors (see below), whose sum is σ = 7913928. Its totient is φ = 1948800.

The previous prime is 3991087. The next prime is 3991093. The reversal of 3991088 is 8801993.

3991088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3991087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2213 + ... + 3588.

Almost surely, 2^3991088 is an apocalyptic number.

It is an amenable number.

3991088 is a deficient number, since it is larger than the sum of its proper divisors (3922840).

3991088 is a wasteful number, since it uses less digits than its factorization.

3991088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5852 (or 5846 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 3991088 is about 1997.7707576196. The cubic root of 3991088 is about 158.6221265498.

The spelling of 3991088 in words is "three million, nine hundred ninety-one thousand, eighty-eight".