42088247 has 4 divisors (see below), whose sum is σ = 42184560. Its totient is φ = 41991936.

The previous prime is 42088237. The next prime is 42088259. The reversal of 42088247 is 74288024.

42088247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42088247 - 2¹² = 42084151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42088217) 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 in 3 ways as a sum of consecutive naturals, for example, 47498 + ... + 48375.

It is an arithmetic number, because the mean of its divisors is an integer number (10546140).

Almost surely, 2^42088247 is an apocalyptic number.

42088247 is a deficient number, since it is larger than the sum of its proper divisors (96313).

42088247 is an equidigital number, since it uses as much as digits as its factorization.

42088247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96312.

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 42088247 is about 6487.5455297054. The cubic root of 42088247 is about 347.8459457070.

The spelling of 42088247 in words is "forty-two million, eighty-eight thousand, two hundred forty-seven".