39090043 has 2 divisors, whose sum is σ = 39090044. Its totient is φ = 39090042.

The previous prime is 39090013. The next prime is 39090047. The reversal of 39090043 is 34009093.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39090043 - 2²⁵ = 5535611 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 39089993 and 39090020.

It is not a weakly prime, because it can be changed into another prime (39090047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19545021 + 19545022.

It is an arithmetic number, because the mean of its divisors is an integer number (19545022).

Almost surely, 2^39090043 is an apocalyptic number.

39090043 is a deficient number, since it is larger than the sum of its proper divisors (1).

39090043 is an equidigital number, since it uses as much as digits as its factorization.

39090043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 39090043 is about 6252.2030517250. The cubic root of 39090043 is about 339.3819307564.

The spelling of 39090043 in words is "thirty-nine million, ninety thousand, forty-three".