3881787 has 32 divisors (see below), whose sum is σ = 6504960. Its totient is φ = 2004480.

The previous prime is 3881743. The next prime is 3881803. The reversal of 3881787 is 7871883.

3881787 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 3881787 - 2⁶ = 3881723 is a prime.

3881787 is an undulating number in base 16.

It is not an unprimeable number, because it can be changed into a prime (3881387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15987 + ... + 16227.

It is an arithmetic number, because the mean of its divisors is an integer number (203280).

Almost surely, 2^3881787 is an apocalyptic number.

3881787 is a deficient number, since it is larger than the sum of its proper divisors (2623173).

3881787 is a wasteful number, since it uses less digits than its factorization.

3881787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323.

The product of its digits is 75264, while the sum is 42.

The square root of 3881787 is about 1970.2251140415. The cubic root of 3881787 is about 157.1606804262.

The spelling of 3881787 in words is "three million, eight hundred eighty-one thousand, seven hundred eighty-seven".