42976559 has 2 divisors, whose sum is σ = 42976560. Its totient is φ = 42976558.

The previous prime is 42976543. The next prime is 42976597. The reversal of 42976559 is 95567924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42976559 - 2⁴ = 42976543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42976519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21488279 + 21488280.

It is an arithmetic number, because the mean of its divisors is an integer number (21488280).

Almost surely, 2^42976559 is an apocalyptic number.

42976559 is a deficient number, since it is larger than the sum of its proper divisors (1).

42976559 is an equidigital number, since it uses as much as digits as its factorization.

42976559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 47.

The square root of 42976559 is about 6555.6509211519. The cubic root of 42976559 is about 350.2761331074.

The spelling of 42976559 in words is "forty-two million, nine hundred seventy-six thousand, five hundred fifty-nine".