42473047 has 2 divisors, whose sum is σ = 42473048. Its totient is φ = 42473046.

The previous prime is 42473033. The next prime is 42473059. The reversal of 42473047 is 74037424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42473047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42470047) 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, 21236523 + 21236524.

It is an arithmetic number, because the mean of its divisors is an integer number (21236524).

Almost surely, 2^42473047 is an apocalyptic number.

42473047 is a deficient number, since it is larger than the sum of its proper divisors (1).

42473047 is an equidigital number, since it uses as much as digits as its factorization.

42473047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 42473047 is about 6517.1348766156. The cubic root of 42473047 is about 348.9028144596.

The spelling of 42473047 in words is "forty-two million, four hundred seventy-three thousand, forty-seven".