42613723 has 4 divisors (see below), whose sum is σ = 42626808. Its totient is φ = 42600640.

The previous prime is 42613721. The next prime is 42613741. The reversal of 42613723 is 32731624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42613723 - 2¹ = 42613721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42613691 and 42613700.

It is not an unprimeable number, because it can be changed into a prime (42613721) 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, 2628 + ... + 9598.

It is an arithmetic number, because the mean of its divisors is an integer number (10656702).

Almost surely, 2^42613723 is an apocalyptic number.

42613723 is a deficient number, since it is larger than the sum of its proper divisors (13085).

42613723 is an equidigital number, since it uses as much as digits as its factorization.

42613723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13084.

The product of its digits is 6048, while the sum is 28.

The square root of 42613723 is about 6527.9187341755. The cubic root of 42613723 is about 349.2875930933.

The spelling of 42613723 in words is "forty-two million, six hundred thirteen thousand, seven hundred twenty-three".