3939737 has 8 divisors (see below), whose sum is σ = 4133640. Its totient is φ = 3749760.

The previous prime is 3939721. The next prime is 3939743. The reversal of 3939737 is 7379393.

It can be written as a sum of positive squares in 4 ways, for example, as 15376 + 3924361 = 124^2 + 1981^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3939737 - 2⁴ = 3939721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3939694 and 3939703.

It is not an unprimeable number, because it can be changed into a prime (3939787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187 + ... + 3047.

It is an arithmetic number, because the mean of its divisors is an integer number (516705).

Almost surely, 2^3939737 is an apocalyptic number.

It is an amenable number.

3939737 is a deficient number, since it is larger than the sum of its proper divisors (193903).

3939737 is a wasteful number, since it uses less digits than its factorization.

3939737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its digits is 107163, while the sum is 41.

The square root of 3939737 is about 1984.8770742794. The cubic root of 3939737 is about 157.9388883995.

The spelling of 3939737 in words is "three million, nine hundred thirty-nine thousand, seven hundred thirty-seven".