42793923 has 16 divisors (see below), whose sum is σ = 58576896. Its totient is φ = 27776640.

The previous prime is 42793903. The next prime is 42793931. The reversal of 42793923 is 32939724.

It is a de Polignac number, because none of the positive numbers 2^k-42793923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42793903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30763 + ... + 32123.

It is an arithmetic number, because the mean of its divisors is an integer number (3661056).

Almost surely, 2^42793923 is an apocalyptic number.

42793923 is a deficient number, since it is larger than the sum of its proper divisors (15782973).

42793923 is a wasteful number, since it uses less digits than its factorization.

42793923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634.

The product of its digits is 81648, while the sum is 39.

The square root of 42793923 is about 6541.7064287539. The cubic root of 42793923 is about 349.7792431033.

The spelling of 42793923 in words is "forty-two million, seven hundred ninety-three thousand, nine hundred twenty-three".