3881739 has 8 divisors (see below), whose sum is σ = 5296192. Its totient is φ = 2527560.

The previous prime is 3881723. The next prime is 3881741. The reversal of 3881739 is 9371883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3881739 - 2⁴ = 3881723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3881697 and 3881706.

It is not an unprimeable number, because it can be changed into a prime (3881239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14917 + ... + 15174.

It is an arithmetic number, because the mean of its divisors is an integer number (662024).

Almost surely, 2^3881739 is an apocalyptic number.

3881739 is a deficient number, since it is larger than the sum of its proper divisors (1414453).

3881739 is a wasteful number, since it uses less digits than its factorization.

3881739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30137.

The product of its digits is 36288, while the sum is 39.

The square root of 3881739 is about 1970.2129326547. The cubic root of 3881739 is about 157.1600326366.

The spelling of 3881739 in words is "three million, eight hundred eighty-one thousand, seven hundred thirty-nine".