42772927 has 4 divisors (see below), whose sum is σ = 42786360. Its totient is φ = 42759496.

The previous prime is 42772909. The next prime is 42772937. The reversal of 42772927 is 72927724.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42772927 - 2¹¹ = 42770879 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42772927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42772937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068 + ... + 9310.

It is an arithmetic number, because the mean of its divisors is an integer number (10696590).

Almost surely, 2^42772927 is an apocalyptic number.

42772927 is a deficient number, since it is larger than the sum of its proper divisors (13433).

42772927 is an equidigital number, since it uses as much as digits as its factorization.

42772927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13432.

The product of its digits is 98784, while the sum is 40.

The square root of 42772927 is about 6540.1014518125. The cubic root of 42772927 is about 349.7220296342.

The spelling of 42772927 in words is "forty-two million, seven hundred seventy-two thousand, nine hundred twenty-seven".