42087663 has 6 divisors (see below), whose sum is σ = 60793304. Its totient is φ = 28058436.

The previous prime is 42087653. The next prime is 42087697. The reversal of 42087663 is 36678024.

42087663 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 42087663 - 2⁹ = 42087151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42087623) 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 5 ways as a sum of consecutive naturals, for example, 2338195 + ... + 2338212.

Almost surely, 2^42087663 is an apocalyptic number.

42087663 is a deficient number, since it is larger than the sum of its proper divisors (18705641).

42087663 is a wasteful number, since it uses less digits than its factorization.

42087663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676413 (or 4676410 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 42087663 is about 6487.5005202312. The cubic root of 42087663 is about 347.8443368416.

The spelling of 42087663 in words is "forty-two million, eighty-seven thousand, six hundred sixty-three".