42076939 has 2 divisors, whose sum is σ = 42076940. Its totient is φ = 42076938.

The previous prime is 42076927. The next prime is 42076997. The reversal of 42076939 is 93967024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42076939 - 2¹¹ = 42074891 is a prime.

It is not a weakly prime, because it can be changed into another prime (42076339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21038469 + 21038470.

It is an arithmetic number, because the mean of its divisors is an integer number (21038470).

Almost surely, 2^42076939 is an apocalyptic number.

42076939 is a deficient number, since it is larger than the sum of its proper divisors (1).

42076939 is an equidigital number, since it uses as much as digits as its factorization.

42076939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 42076939 is about 6486.6739551175. The cubic root of 42076939 is about 347.8147905781.

The spelling of 42076939 in words is "forty-two million, seventy-six thousand, nine hundred thirty-nine".