42877229 has 4 divisors (see below), whose sum is σ = 42962976. Its totient is φ = 42791484.

The previous prime is 42877223. The next prime is 42877231. The reversal of 42877229 is 92277824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42877229 - 2⁸ = 42876973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42877223) 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 3 ways as a sum of consecutive naturals, for example, 42119 + ... + 43124.

It is an arithmetic number, because the mean of its divisors is an integer number (10740744).

Almost surely, 2^42877229 is an apocalyptic number.

It is an amenable number.

42877229 is a deficient number, since it is larger than the sum of its proper divisors (85747).

42877229 is an equidigital number, since it uses as much as digits as its factorization.

42877229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85746.

The product of its digits is 112896, while the sum is 41.

The square root of 42877229 is about 6548.0706318732. The cubic root of 42877229 is about 350.0060652010.

The spelling of 42877229 in words is "forty-two million, eight hundred seventy-seven thousand, two hundred twenty-nine".