39004345 has 4 divisors (see below), whose sum is σ = 46805220. Its totient is φ = 31203472.

The previous prime is 39004319. The next prime is 39004351. The reversal of 39004345 is 54340093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54340093 = 1511 ⋅35963.

It can be written as a sum of positive squares in 2 ways, for example, as 26101881 + 12902464 = 5109^2 + 3592^2 .

It is a cyclic number.

It is not a de Polignac number, because 39004345 - 2¹¹ = 39002297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3900430 + ... + 3900439.

It is an arithmetic number, because the mean of its divisors is an integer number (11701305).

Almost surely, 2^39004345 is an apocalyptic number.

It is an amenable number.

39004345 is a deficient number, since it is larger than the sum of its proper divisors (7800875).

39004345 is an equidigital number, since it uses as much as digits as its factorization.

39004345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800874.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 39004345 is about 6245.3458671238. The cubic root of 39004345 is about 339.1337376916.

The spelling of 39004345 in words is "thirty-nine million, four thousand, three hundred forty-five".