42247883 has 2 divisors, whose sum is σ = 42247884. Its totient is φ = 42247882.

The previous prime is 42247861. The next prime is 42247889. The reversal of 42247883 is 38874224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42247883 - 2¹² = 42243787 is a prime.

It is equal to p_2561789 and since 42247883 and 2561789 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42247889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21123941 + 21123942.

It is an arithmetic number, because the mean of its divisors is an integer number (21123942).

Almost surely, 2^42247883 is an apocalyptic number.

42247883 is a deficient number, since it is larger than the sum of its proper divisors (1).

42247883 is an equidigital number, since it uses as much as digits as its factorization.

42247883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 38.

The square root of 42247883 is about 6499.8371518062. The cubic root of 42247883 is about 348.2851710818.

The spelling of 42247883 in words is "forty-two million, two hundred forty-seven thousand, eight hundred eighty-three".