39270073 has 4 divisors (see below), whose sum is σ = 39282660. Its totient is φ = 39257488.

The previous prime is 39270071. The next prime is 39270079. The reversal of 39270073 is 37007293.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 37007293 = 83 ⋅445871.

It can be written as a sum of positive squares in 2 ways, for example, as 8832784 + 30437289 = 2972^2 + 5517^2 .

It is a cyclic number.

It is not a de Polignac number, because 39270073 - 2¹ = 39270071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39270071) 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, 2283 + ... + 9151.

It is an arithmetic number, because the mean of its divisors is an integer number (9820665).

Almost surely, 2^39270073 is an apocalyptic number.

It is an amenable number.

39270073 is a deficient number, since it is larger than the sum of its proper divisors (12587).

39270073 is an equidigital number, since it uses as much as digits as its factorization.

39270073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12586.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 39270073 is about 6266.5838381051. The cubic root of 39270073 is about 339.9021431184.

The spelling of 39270073 in words is "thirty-nine million, two hundred seventy thousand, seventy-three".