3881207 has 4 divisors (see below), whose sum is σ = 4234056. Its totient is φ = 3528360.

The previous prime is 3881203. The next prime is 3881209. The reversal of 3881207 is 7021883.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3881207 - 2² = 3881203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3881207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176408 + ... + 176429.

It is an arithmetic number, because the mean of its divisors is an integer number (1058514).

Almost surely, 2^3881207 is an apocalyptic number.

3881207 is a deficient number, since it is larger than the sum of its proper divisors (352849).

3881207 is a wasteful number, since it uses less digits than its factorization.

3881207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352848.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 3881207 is about 1970.0779172408. The cubic root of 3881207 is about 157.1528526110.

The spelling of 3881207 in words is "three million, eight hundred eighty-one thousand, two hundred seven".