42773889 has 8 divisors (see below), whose sum is σ = 57555520. Its totient is φ = 28254096.

The previous prime is 42773881. The next prime is 42773891. The reversal of 42773889 is 98837724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42773889 - 2³ = 42773881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42773881) 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 7 ways as a sum of consecutive naturals, for example, 65077 + ... + 65730.

It is an arithmetic number, because the mean of its divisors is an integer number (7194440).

Almost surely, 2^42773889 is an apocalyptic number.

It is an amenable number.

42773889 is a deficient number, since it is larger than the sum of its proper divisors (14781631).

42773889 is a wasteful number, since it uses less digits than its factorization.

42773889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130919.

The product of its digits is 677376, while the sum is 48.

The square root of 42773889 is about 6540.1749976587. The cubic root of 42773889 is about 349.7246514645.

The spelling of 42773889 in words is "forty-two million, seven hundred seventy-three thousand, eight hundred eighty-nine".