42908735 has 4 divisors (see below), whose sum is σ = 51490488. Its totient is φ = 34326984.

The previous prime is 42908717. The next prime is 42908737. The reversal of 42908735 is 53780924.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42908735 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 (42908737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4290869 + ... + 4290878.

It is an arithmetic number, because the mean of its divisors is an integer number (12872622).

Almost surely, 2^42908735 is an apocalyptic number.

42908735 is a deficient number, since it is larger than the sum of its proper divisors (8581753).

42908735 is an equidigital number, since it uses as much as digits as its factorization.

42908735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8581752.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 42908735 is about 6550.4759369072. The cubic root of 42908735 is about 350.0917718532.

The spelling of 42908735 in words is "forty-two million, nine hundred eight thousand, seven hundred thirty-five".