42741487 has 2 divisors, whose sum is σ = 42741488. Its totient is φ = 42741486.

The previous prime is 42741481. The next prime is 42741497. The reversal of 42741487 is 78414724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42741487 - 2⁷ = 42741359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42741481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21370743 + 21370744.

It is an arithmetic number, because the mean of its divisors is an integer number (21370744).

Almost surely, 2^42741487 is an apocalyptic number.

42741487 is a deficient number, since it is larger than the sum of its proper divisors (1).

42741487 is an equidigital number, since it uses as much as digits as its factorization.

42741487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50176, while the sum is 37.

The square root of 42741487 is about 6537.6973775176. The cubic root of 42741487 is about 349.6363215592.

It can be divided in two parts, 427 and 41487, that added together give a palindrome (41914).

The spelling of 42741487 in words is "forty-two million, seven hundred forty-one thousand, four hundred eighty-seven".