42703665 has 16 divisors (see below), whose sum is σ = 68411328. Its totient is φ = 22746816.

The previous prime is 42703649. The next prime is 42703667. The reversal of 42703665 is 56630724.

42703665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42703665 - 2⁴ = 42703649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42703667) 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 15 ways as a sum of consecutive naturals, for example, 17022 + ... + 19368.

It is an arithmetic number, because the mean of its divisors is an integer number (4275708).

Almost surely, 2^42703665 is an apocalyptic number.

It is an amenable number.

42703665 is a deficient number, since it is larger than the sum of its proper divisors (25707663).

42703665 is a wasteful number, since it uses less digits than its factorization.

42703665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 42703665 is about 6534.8041286637. The cubic root of 42703665 is about 349.5331599050.

The spelling of 42703665 in words is "forty-two million, seven hundred three thousand, six hundred sixty-five".