42349997 has 2 divisors, whose sum is σ = 42349998. Its totient is φ = 42349996.

The previous prime is 42349991. The next prime is 42350017. The reversal of 42349997 is 79994324.

42349997 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., 30316036 + 12033961 = 5506^2 + 3469^2 .

It is a cyclic number.

It is not a de Polignac number, because 42349997 - 2⁴ = 42349981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42349991) 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, 21174998 + 21174999.

It is an arithmetic number, because the mean of its divisors is an integer number (21174999).

Almost surely, 2^42349997 is an apocalyptic number.

It is an amenable number.

42349997 is a deficient number, since it is larger than the sum of its proper divisors (1).

42349997 is an equidigital number, since it uses as much as digits as its factorization.

42349997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 42349997 is about 6507.6875309130. The cubic root of 42349997 is about 348.5655494443.

The spelling of 42349997 in words is "forty-two million, three hundred forty-nine thousand, nine hundred ninety-seven".