42927709 has 8 divisors (see below), whose sum is σ = 46879200. Its totient is φ = 38984400.

The previous prime is 42927673. The next prime is 42927749. The reversal of 42927709 is 90772924.

42927709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42927709 - 2⁷ = 42927581 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 (42927749) 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 7 ways as a sum of consecutive naturals, for example, 15567 + ... + 18115.

It is an arithmetic number, because the mean of its divisors is an integer number (5859900).

Almost surely, 2^42927709 is an apocalyptic number.

It is an amenable number.

42927709 is a deficient number, since it is larger than the sum of its proper divisors (3951491).

42927709 is a wasteful number, since it uses less digits than its factorization.

42927709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 42927709 is about 6551.9240685466. The cubic root of 42927709 is about 350.1433671162.

The spelling of 42927709 in words is "forty-two million, nine hundred twenty-seven thousand, seven hundred nine".