42967999 has 2 divisors, whose sum is σ = 42968000. Its totient is φ = 42967998.

The previous prime is 42967997. The next prime is 42968017. The reversal of 42967999 is 99976924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42967999 - 2¹ = 42967997 is a prime.

Together with 42967997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42967997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21483999 + 21484000.

It is an arithmetic number, because the mean of its divisors is an integer number (21484000).

Almost surely, 2^42967999 is an apocalyptic number.

42967999 is a deficient number, since it is larger than the sum of its proper divisors (1).

42967999 is an equidigital number, since it uses as much as digits as its factorization.

42967999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2204496, while the sum is 55.

The square root of 42967999 is about 6554.9980167808. The cubic root of 42967999 is about 350.2528757561.

The spelling of 42967999 in words is "forty-two million, nine hundred sixty-seven thousand, nine hundred ninety-nine".