42393653 has 2 divisors, whose sum is σ = 42393654. Its totient is φ = 42393652.

The previous prime is 42393643. The next prime is 42393707. The reversal of 42393653 is 35639324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42276004 + 117649 = 6502^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 42393653 - 2⁸ = 42393397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42393613) 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, 21196826 + 21196827.

It is an arithmetic number, because the mean of its divisors is an integer number (21196827).

Almost surely, 2^42393653 is an apocalyptic number.

It is an amenable number.

42393653 is a deficient number, since it is larger than the sum of its proper divisors (1).

42393653 is an equidigital number, since it uses as much as digits as its factorization.

42393653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 35.

The square root of 42393653 is about 6511.0408538113. The cubic root of 42393653 is about 348.6852798886.

The spelling of 42393653 in words is "forty-two million, three hundred ninety-three thousand, six hundred fifty-three".