42588643 has 2 divisors, whose sum is σ = 42588644. Its totient is φ = 42588642.

The previous prime is 42588631. The next prime is 42588649. The reversal of 42588643 is 34688524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42588643 - 2²¹ = 40491491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42588596 and 42588605.

It is not a weakly prime, because it can be changed into another prime (42588649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21294321 + 21294322.

It is an arithmetic number, because the mean of its divisors is an integer number (21294322).

Almost surely, 2^42588643 is an apocalyptic number.

42588643 is a deficient number, since it is larger than the sum of its proper divisors (1).

42588643 is an equidigital number, since it uses as much as digits as its factorization.

42588643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 40.

The square root of 42588643 is about 6525.9974716514. The cubic root of 42588643 is about 349.2190560795.

The spelling of 42588643 in words is "forty-two million, five hundred eighty-eight thousand, six hundred forty-three".