42724963 has 2 divisors, whose sum is σ = 42724964. Its totient is φ = 42724962.

The previous prime is 42724937. The next prime is 42724987. The reversal of 42724963 is 36942724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42724963 - 2⁵ = 42724931 is a prime.

It is not a weakly prime, because it can be changed into another prime (42724933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21362481 + 21362482.

It is an arithmetic number, because the mean of its divisors is an integer number (21362482).

Almost surely, 2^42724963 is an apocalyptic number.

42724963 is a deficient number, since it is larger than the sum of its proper divisors (1).

42724963 is an equidigital number, since it uses as much as digits as its factorization.

42724963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 42724963 is about 6536.4335076554. The cubic root of 42724963 is about 349.5912588994.

The spelling of 42724963 in words is "forty-two million, seven hundred twenty-four thousand, nine hundred sixty-three".