42424727 has 2 divisors, whose sum is σ = 42424728. Its totient is φ = 42424726.

The previous prime is 42424699. The next prime is 42424763. The reversal of 42424727 is 72742424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42424727 - 2⁸ = 42424471 is a prime.

It is a super-2 number, since 2×42424727² = 3599714922049058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42424693 and 42424702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42420727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21212363 + 21212364.

It is an arithmetic number, because the mean of its divisors is an integer number (21212364).

Almost surely, 2^42424727 is an apocalyptic number.

42424727 is a deficient number, since it is larger than the sum of its proper divisors (1).

42424727 is an equidigital number, since it uses as much as digits as its factorization.

42424727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25088, while the sum is 32.

The square root of 42424727 is about 6513.4266711156. The cubic root of 42424727 is about 348.7704530170.

The spelling of 42424727 in words is "forty-two million, four hundred twenty-four thousand, seven hundred twenty-seven".