42947927 has 32 divisors (see below), whose sum is σ = 51701760. Its totient is φ = 35280000.

The previous prime is 42947921. The next prime is 42947941. The reversal of 42947927 is 72974924.

It is a cyclic number.

It is not a de Polignac number, because 42947927 - 2⁴ = 42947911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42947921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425177 + ... + 425277.

It is an arithmetic number, because the mean of its divisors is an integer number (1615680).

Almost surely, 2^42947927 is an apocalyptic number.

42947927 is a deficient number, since it is larger than the sum of its proper divisors (8753833).

42947927 is a wasteful number, since it uses less digits than its factorization.

42947927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215.

The product of its digits is 254016, while the sum is 44.

The square root of 42947927 is about 6553.4667924695. The cubic root of 42947927 is about 350.1983284118.

It can be divided in two parts, 4294 and 7927, that added together give a palindrome (12221).

The spelling of 42947927 in words is "forty-two million, nine hundred forty-seven thousand, nine hundred twenty-seven".