42803887 has 16 divisors (see below), whose sum is σ = 50245632. Its totient is φ = 35703360.

The previous prime is 42803879. The next prime is 42803899. The reversal of 42803887 is 78830824.

42803887 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 42803887 - 2³ = 42803879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42803837) 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 15 ways as a sum of consecutive naturals, for example, 92218 + ... + 92680.

It is an arithmetic number, because the mean of its divisors is an integer number (3140352).

Almost surely, 2^42803887 is an apocalyptic number.

42803887 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42803887 is a deficient number, since it is larger than the sum of its proper divisors (7441745).

42803887 is a wasteful number, since it uses less digits than its factorization.

42803887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 42803887 is about 6542.4679594171. The cubic root of 42803887 is about 349.8063881563.

The spelling of 42803887 in words is "forty-two million, eight hundred three thousand, eight hundred eighty-seven".