42911927 has 16 divisors (see below), whose sum is σ = 46865952. Its totient is φ = 39137280.

The previous prime is 42911917. The next prime is 42911929. The reversal of 42911927 is 72911924.

It is a cyclic number.

It is not a de Polignac number, because 42911927 - 2²⁰ = 41863351 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 (42911929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87152 + ... + 87642.

It is an arithmetic number, because the mean of its divisors is an integer number (2929122).

Almost surely, 2^42911927 is an apocalyptic number.

42911927 is a deficient number, since it is larger than the sum of its proper divisors (3954025).

42911927 is a wasteful number, since it uses less digits than its factorization.

42911927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658.

The product of its digits is 9072, while the sum is 35.

The square root of 42911927 is about 6550.7195787944. The cubic root of 42911927 is about 350.1004527991.

The spelling of 42911927 in words is "forty-two million, nine hundred eleven thousand, nine hundred twenty-seven".