42264647 has 2 divisors, whose sum is σ = 42264648. Its totient is φ = 42264646.

The previous prime is 42264631. The next prime is 42264689. The reversal of 42264647 is 74646224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42264647 - 2⁴ = 42264631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42264617) 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, 21132323 + 21132324.

It is an arithmetic number, because the mean of its divisors is an integer number (21132324).

Almost surely, 2^42264647 is an apocalyptic number.

42264647 is a deficient number, since it is larger than the sum of its proper divisors (1).

42264647 is an equidigital number, since it uses as much as digits as its factorization.

42264647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 35.

The square root of 42264647 is about 6501.1265946757. The cubic root of 42264647 is about 348.3312316187.

The spelling of 42264647 in words is "forty-two million, two hundred sixty-four thousand, six hundred forty-seven".