3939073 has 4 divisors (see below), whose sum is σ = 3979780. Its totient is φ = 3898368.

The previous prime is 3939071. The next prime is 3939149. The reversal of 3939073 is 3709393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3709393 = 41 ⋅90473.

It can be written as a sum of positive squares in 2 ways, for example, as 1272384 + 2666689 = 1128^2 + 1633^2 .

It is a cyclic number.

It is not a de Polignac number, because 3939073 - 2¹ = 3939071 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3939071) 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, 20208 + ... + 20401.

It is an arithmetic number, because the mean of its divisors is an integer number (994945).

Almost surely, 2^3939073 is an apocalyptic number.

It is an amenable number.

3939073 is a deficient number, since it is larger than the sum of its proper divisors (40707).

3939073 is an equidigital number, since it uses as much as digits as its factorization.

3939073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40706.

The product of its (nonzero) digits is 15309, while the sum is 34.

The square root of 3939073 is about 1984.7098024648. The cubic root of 3939073 is about 157.9300149380.

The spelling of 3939073 in words is "three million, nine hundred thirty-nine thousand, seventy-three".