42097277 has 2 divisors, whose sum is σ = 42097278. Its totient is φ = 42097276.

The previous prime is 42097261. The next prime is 42097303. The reversal of 42097277 is 77279024.

42097277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22080601 + 20016676 = 4699^2 + 4474^2 .

It is a cyclic number.

It is not a de Polignac number, because 42097277 - 2⁴ = 42097261 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42097277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42097177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21048638 + 21048639.

It is an arithmetic number, because the mean of its divisors is an integer number (21048639).

Almost surely, 2^42097277 is an apocalyptic number.

It is an amenable number.

42097277 is a deficient number, since it is larger than the sum of its proper divisors (1).

42097277 is an equidigital number, since it uses as much as digits as its factorization.

42097277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 42097277 is about 6488.2414412536. The cubic root of 42097277 is about 347.8708206186.

The spelling of 42097277 in words is "forty-two million, ninety-seven thousand, two hundred seventy-seven".