42673563 has 24 divisors (see below), whose sum is σ = 65324480. Its totient is φ = 26768880.

The previous prime is 42673523. The next prime is 42673567. The reversal of 42673563 is 36537624.

42673563 is a `hidden beast` number, since 4 + 26 + 73 + 563 = 666.

42673563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42673563 - 2¹⁸ = 42411419 is a prime.

It is a super-4 number, since 4×42673563⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42673567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27108 + ... + 28638.

Almost surely, 2^42673563 is an apocalyptic number.

42673563 is a deficient number, since it is larger than the sum of its proper divisors (22650917).

42673563 is a wasteful number, since it uses less digits than its factorization.

42673563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719 (or 1716 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 42673563 is about 6532.5005166475. The cubic root of 42673563 is about 349.4510114493.

The spelling of 42673563 in words is "forty-two million, six hundred seventy-three thousand, five hundred sixty-three".