42211927 has 2 divisors, whose sum is σ = 42211928. Its totient is φ = 42211926.

The previous prime is 42211921. The next prime is 42212011. The reversal of 42211927 is 72911224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42211927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42211895 and 42211904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42211921) 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 as a sum of consecutive naturals, namely, 21105963 + 21105964.

It is an arithmetic number, because the mean of its divisors is an integer number (21105964).

Almost surely, 2^42211927 is an apocalyptic number.

42211927 is a deficient number, since it is larger than the sum of its proper divisors (1).

42211927 is an equidigital number, since it uses as much as digits as its factorization.

42211927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 28.

The square root of 42211927 is about 6497.0706476073. The cubic root of 42211927 is about 348.1863377593.

The spelling of 42211927 in words is "forty-two million, two hundred eleven thousand, nine hundred twenty-seven".