42735599 has 2 divisors, whose sum is σ = 42735600. Its totient is φ = 42735598.

The previous prime is 42735533. The next prime is 42735601. The reversal of 42735599 is 99553724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42735599 - 2¹² = 42731503 is a prime.

Together with 42735601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42735509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21367799 + 21367800.

It is an arithmetic number, because the mean of its divisors is an integer number (21367800).

Almost surely, 2^42735599 is an apocalyptic number.

42735599 is a deficient number, since it is larger than the sum of its proper divisors (1).

42735599 is an equidigital number, since it uses as much as digits as its factorization.

42735599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 44.

The square root of 42735599 is about 6537.2470505558. The cubic root of 42735599 is about 349.6202657053.

It can be divided in two parts, 42735 and 599, that added together give a palindrome (43334).

The spelling of 42735599 in words is "forty-two million, seven hundred thirty-five thousand, five hundred ninety-nine".