42887769 has 16 divisors (see below), whose sum is σ = 60540480. Its totient is φ = 26930880.

The previous prime is 42887737. The next prime is 42887777. The reversal of 42887769 is 96778824.

42887769 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 42887769 - 2⁵ = 42887737 is a prime.

It is a super-2 number, since 2×42887769² = 3678721459594722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42887729) 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, 8239 + ... + 12395.

It is an arithmetic number, because the mean of its divisors is an integer number (3783780).

Almost surely, 2^42887769 is an apocalyptic number.

It is an amenable number.

42887769 is a deficient number, since it is larger than the sum of its proper divisors (17652711).

42887769 is a wasteful number, since it uses less digits than its factorization.

42887769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360.

The product of its digits is 1354752, while the sum is 51.

The square root of 42887769 is about 6548.8753996392. The cubic root of 42887769 is about 350.0347421295.

The spelling of 42887769 in words is "forty-two million, eight hundred eighty-seven thousand, seven hundred sixty-nine".