42471307 has 2 divisors, whose sum is σ = 42471308. Its totient is φ = 42471306.

The previous prime is 42471281. The next prime is 42471313. The reversal of 42471307 is 70317424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42471307 - 2¹⁹ = 41947019 is a prime.

It is not a weakly prime, because it can be changed into another prime (42471337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21235653 + 21235654.

It is an arithmetic number, because the mean of its divisors is an integer number (21235654).

Almost surely, 2^42471307 is an apocalyptic number.

42471307 is a deficient number, since it is larger than the sum of its proper divisors (1).

42471307 is an equidigital number, since it uses as much as digits as its factorization.

42471307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 42471307 is about 6517.0013810034. The cubic root of 42471307 is about 348.8980498757.

It can be divided in two parts, 42471 and 307, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 42471307 in words is "forty-two million, four hundred seventy-one thousand, three hundred seven".