42936293 has 2 divisors, whose sum is σ = 42936294. Its totient is φ = 42936292.

The previous prime is 42936259. The next prime is 42936323. The reversal of 42936293 is 39263924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34304449 + 8631844 = 5857^2 + 2938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42936293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42936233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21468146 + 21468147.

It is an arithmetic number, because the mean of its divisors is an integer number (21468147).

Almost surely, 2^42936293 is an apocalyptic number.

It is an amenable number.

42936293 is a deficient number, since it is larger than the sum of its proper divisors (1).

42936293 is an equidigital number, since it uses as much as digits as its factorization.

42936293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 38.

The square root of 42936293 is about 6552.5791105488. The cubic root of 42936293 is about 350.1667042600.

The spelling of 42936293 in words is "forty-two million, nine hundred thirty-six thousand, two hundred ninety-three".