42567793 has 2 divisors, whose sum is σ = 42567794. Its totient is φ = 42567792.

The previous prime is 42567787. The next prime is 42567803. The reversal of 42567793 is 39776524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42289009 + 278784 = 6503^2 + 528^2 .

It is a cyclic number.

It is not a de Polignac number, because 42567793 - 2⁹ = 42567281 is a prime.

It is not a weakly prime, because it can be changed into another prime (42561793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21283896 + 21283897.

It is an arithmetic number, because the mean of its divisors is an integer number (21283897).

Almost surely, 2^42567793 is an apocalyptic number.

It is an amenable number.

42567793 is a deficient number, since it is larger than the sum of its proper divisors (1).

42567793 is an equidigital number, since it uses as much as digits as its factorization.

42567793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 43.

The square root of 42567793 is about 6524.3998191405. The cubic root of 42567793 is about 349.1620580526.

The spelling of 42567793 in words is "forty-two million, five hundred sixty-seven thousand, seven hundred ninety-three".