42611623 has 8 divisors (see below), whose sum is σ = 45132800. Its totient is φ = 40118328.

The previous prime is 42611603. The next prime is 42611627. The reversal of 42611623 is 32611624.

42611623 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 a de Polignac number, because none of the positive numbers 2^k-42611623 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 (42611627) 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, 3783 + ... + 9976.

It is an arithmetic number, because the mean of its divisors is an integer number (5641600).

Almost surely, 2^42611623 is an apocalyptic number.

42611623 is a deficient number, since it is larger than the sum of its proper divisors (2521177).

42611623 is a wasteful number, since it uses less digits than its factorization.

42611623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13941.

The product of its digits is 1728, while the sum is 25.

The square root of 42611623 is about 6527.7578846033. The cubic root of 42611623 is about 349.2818553798.

Subtracting from 42611623 its reverse (32611624), we obtain a palindrome (9999999).

It can be divided in two parts, 42611 and 623, that added together give a palindrome (43234).

The spelling of 42611623 in words is "forty-two million, six hundred eleven thousand, six hundred twenty-three".