42277093 has 4 divisors (see below), whose sum is σ = 43074828. Its totient is φ = 41479360.

The previous prime is 42277073. The next prime is 42277097. The reversal of 42277093 is 39077224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30669444 + 11607649 = 5538^2 + 3407^2 .

It is a cyclic number.

It is not a de Polignac number, because 42277093 - 2⁵ = 42277061 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 (42277097) 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, 398788 + ... + 398893.

It is an arithmetic number, because the mean of its divisors is an integer number (10768707).

Almost surely, 2^42277093 is an apocalyptic number.

It is an amenable number.

42277093 is a deficient number, since it is larger than the sum of its proper divisors (797735).

42277093 is an equidigital number, since it uses as much as digits as its factorization.

42277093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797734.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 42277093 is about 6502.0837429243. The cubic root of 42277093 is about 348.3654202005.

The spelling of 42277093 in words is "forty-two million, two hundred seventy-seven thousand, ninety-three".