42357907 has 2 divisors, whose sum is σ = 42357908. Its totient is φ = 42357906.

The previous prime is 42357883. The next prime is 42357911. The reversal of 42357907 is 70975324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42357907 - 2⁷ = 42357779 is a prime.

It is not a weakly prime, because it can be changed into another prime (42357407) 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, 21178953 + 21178954.

It is an arithmetic number, because the mean of its divisors is an integer number (21178954).

Almost surely, 2^42357907 is an apocalyptic number.

42357907 is a deficient number, since it is larger than the sum of its proper divisors (1).

42357907 is an equidigital number, since it uses as much as digits as its factorization.

42357907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 42357907 is about 6508.2952453004. The cubic root of 42357907 is about 348.5872494211.

It can be divided in two parts, 42357 and 907, that added together give a square (43264 = 208²).

The spelling of 42357907 in words is "forty-two million, three hundred fifty-seven thousand, nine hundred seven".