42603663 has 4 divisors (see below), whose sum is σ = 56804888. Its totient is φ = 28402440.

The previous prime is 42603647. The next prime is 42603707. The reversal of 42603663 is 36630624.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42603663 - 2⁴ = 42603647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42603663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42603623) 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 in 3 ways as a sum of consecutive naturals, for example, 7100608 + ... + 7100613.

It is an arithmetic number, because the mean of its divisors is an integer number (14201222).

Almost surely, 2^42603663 is an apocalyptic number.

42603663 is a deficient number, since it is larger than the sum of its proper divisors (14201225).

42603663 is a wasteful number, since it uses less digits than its factorization.

42603663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14201224.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 42603663 is about 6527.1481521412. The cubic root of 42603663 is about 349.2601050019.

The spelling of 42603663 in words is "forty-two million, six hundred three thousand, six hundred sixty-three".