42877986 has 16 divisors (see below), whose sum is σ = 86383584. Its totient is φ = 14188064.

The previous prime is 42877981. The next prime is 42877987. The reversal of 42877986 is 68977824.

It is not an unprimeable number, because it can be changed into a prime (42877981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25260 + ... + 26903.

It is an arithmetic number, because the mean of its divisors is an integer number (5398974).

Almost surely, 2^42877986 is an apocalyptic number.

42877986 is an abundant number, since it is smaller than the sum of its proper divisors (43505598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42877986 is a wasteful number, since it uses less digits than its factorization.

42877986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52305.

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

The square root of 42877986 is about 6548.1284349041. The cubic root of 42877986 is about 350.0081249815.

The spelling of 42877986 in words is "forty-two million, eight hundred seventy-seven thousand, nine hundred eighty-six".