42385597 has 2 divisors, whose sum is σ = 42385598. Its totient is φ = 42385596.

The previous prime is 42385591. The next prime is 42385639. The reversal of 42385597 is 79558324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32936121 + 9449476 = 5739^2 + 3074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42385597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42385591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21192798 + 21192799.

It is an arithmetic number, because the mean of its divisors is an integer number (21192799).

Almost surely, 2^42385597 is an apocalyptic number.

It is an amenable number.

42385597 is a deficient number, since it is larger than the sum of its proper divisors (1).

42385597 is an equidigital number, since it uses as much as digits as its factorization.

42385597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 42385597 is about 6510.4221829310. The cubic root of 42385597 is about 348.6631917821.

The spelling of 42385597 in words is "forty-two million, three hundred eighty-five thousand, five hundred ninety-seven".