42479543 has 2 divisors, whose sum is σ = 42479544. Its totient is φ = 42479542.

The previous prime is 42479537. The next prime is 42479603. The reversal of 42479543 is 34597424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42479543 - 2⁴ = 42479527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42479497 and 42479506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42479533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21239771 + 21239772.

It is an arithmetic number, because the mean of its divisors is an integer number (21239772).

Almost surely, 2^42479543 is an apocalyptic number.

42479543 is a deficient number, since it is larger than the sum of its proper divisors (1).

42479543 is an equidigital number, since it uses as much as digits as its factorization.

42479543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 38.

The square root of 42479543 is about 6517.6332360758. The cubic root of 42479543 is about 348.9206010898.

The spelling of 42479543 in words is "forty-two million, four hundred seventy-nine thousand, five hundred forty-three".