42632647 has 2 divisors, whose sum is σ = 42632648. Its totient is φ = 42632646.

The previous prime is 42632641. The next prime is 42632663. The reversal of 42632647 is 74623624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42632647 - 2⁷ = 42632519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42632641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21316323 + 21316324.

It is an arithmetic number, because the mean of its divisors is an integer number (21316324).

Almost surely, 2^42632647 is an apocalyptic number.

42632647 is a deficient number, since it is larger than the sum of its proper divisors (1).

42632647 is an equidigital number, since it uses as much as digits as its factorization.

42632647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 34.

The square root of 42632647 is about 6529.3680398642. The cubic root of 42632647 is about 349.3392895871.

The spelling of 42632647 in words is "forty-two million, six hundred thirty-two thousand, six hundred forty-seven".