3881737 has 4 divisors (see below), whose sum is σ = 4015620. Its totient is φ = 3747856.

The previous prime is 3881723. The next prime is 3881741. The reversal of 3881737 is 7371883.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2903616 + 978121 = 1704^2 + 989^2 .

It is a cyclic number.

It is not a de Polignac number, because 3881737 - 2⁷ = 3881609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3881696 and 3881705.

It is not an unprimeable number, because it can be changed into a prime (3881837) 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, 66898 + ... + 66955.

It is an arithmetic number, because the mean of its divisors is an integer number (1003905).

Almost surely, 2^3881737 is an apocalyptic number.

It is an amenable number.

3881737 is a deficient number, since it is larger than the sum of its proper divisors (133883).

3881737 is a wasteful number, since it uses less digits than its factorization.

3881737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133882.

The product of its digits is 28224, while the sum is 37.

The square root of 3881737 is about 1970.2124250953. The cubic root of 3881737 is about 157.1600056453.

The spelling of 3881737 in words is "three million, eight hundred eighty-one thousand, seven hundred thirty-seven".