42765723 has 96 divisors (see below), whose sum is σ = 85542912. Its totient is φ = 19872000.

The previous prime is 42765721. The next prime is 42765731. The reversal of 42765723 is 32756724.

It is a happy number.

42765723 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 42765723 - 2¹ = 42765721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42765721) 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 95 ways as a sum of consecutive naturals, for example, 423373 + ... + 423473.

It is an arithmetic number, because the mean of its divisors is an integer number (891072).

Almost surely, 2^42765723 is an apocalyptic number.

42765723 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

42765723 is a wasteful number, since it uses less digits than its factorization.

42765723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 182 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 42765723 is about 6539.5506726380. The cubic root of 42765723 is about 349.7023946366.

It can be divided in two parts, 4276 and 5723, that added together give a palindrome (9999).

The spelling of 42765723 in words is "forty-two million, seven hundred sixty-five thousand, seven hundred twenty-three".