42577937 has 2 divisors, whose sum is σ = 42577938. Its totient is φ = 42577936.

The previous prime is 42577891. The next prime is 42577957. The reversal of 42577937 is 73977524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38887696 + 3690241 = 6236^2 + 1921^2 .

It is a cyclic number.

It is not a de Polignac number, because 42577937 - 2⁸ = 42577681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42577957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21288968 + 21288969.

It is an arithmetic number, because the mean of its divisors is an integer number (21288969).

Almost surely, 2^42577937 is an apocalyptic number.

It is an amenable number.

42577937 is a deficient number, since it is larger than the sum of its proper divisors (1).

42577937 is an equidigital number, since it uses as much as digits as its factorization.

42577937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370440, while the sum is 44.

The square root of 42577937 is about 6525.1771623459. The cubic root of 42577937 is about 349.1897912154.

The spelling of 42577937 in words is "forty-two million, five hundred seventy-seven thousand, nine hundred thirty-seven".