42926393 has 2 divisors, whose sum is σ = 42926394. Its totient is φ = 42926392.

The previous prime is 42926363. The next prime is 42926417. The reversal of 42926393 is 39362924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27583504 + 15342889 = 5252^2 + 3917^2 .

It is a cyclic number.

It is not a de Polignac number, because 42926393 - 2¹⁰ = 42925369 is a prime.

It is not a weakly prime, because it can be changed into another prime (42926333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21463196 + 21463197.

It is an arithmetic number, because the mean of its divisors is an integer number (21463197).

Almost surely, 2^42926393 is an apocalyptic number.

It is an amenable number.

42926393 is a deficient number, since it is larger than the sum of its proper divisors (1).

42926393 is an equidigital number, since it uses as much as digits as its factorization.

42926393 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 42926393 is about 6551.8236392626. The cubic root of 42926393 is about 350.1397890592.

The spelling of 42926393 in words is "forty-two million, nine hundred twenty-six thousand, three hundred ninety-three".