42974719 has 2 divisors, whose sum is σ = 42974720. Its totient is φ = 42974718.

The previous prime is 42974699. The next prime is 42974747. The reversal of 42974719 is 91747924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42974719 - 2⁹ = 42974207 is a prime.

It is a super-2 number, since 2×42974719² = 3693652946257922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42974749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21487359 + 21487360.

It is an arithmetic number, because the mean of its divisors is an integer number (21487360).

Almost surely, 2^42974719 is an apocalyptic number.

42974719 is a deficient number, since it is larger than the sum of its proper divisors (1).

42974719 is an equidigital number, since it uses as much as digits as its factorization.

42974719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 42974719 is about 6555.5105827083. The cubic root of 42974719 is about 350.2711341243.

The spelling of 42974719 in words is "forty-two million, nine hundred seventy-four thousand, seven hundred nineteen".