423661411 has 4 divisors (see below), whose sum is σ = 445959400. Its totient is φ = 401363424.

The previous prime is 423661397. The next prime is 423661417. The reversal of 423661411 is 114166324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423661411 - 2²¹ = 421564259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423661411.

It is not an unprimeable number, because it can be changed into a prime (423661417) 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 3 ways as a sum of consecutive naturals, for example, 11148966 + ... + 11149003.

It is an arithmetic number, because the mean of its divisors is an integer number (111489850).

Almost surely, 2^423661411 is an apocalyptic number.

423661411 is a deficient number, since it is larger than the sum of its proper divisors (22297989).

423661411 is a wasteful number, since it uses less digits than its factorization.

423661411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22297988.

The product of its digits is 3456, while the sum is 28.

The square root of 423661411 is about 20583.0369722255. The cubic root of 423661411 is about 751.0571232132.

The spelling of 423661411 in words is "four hundred twenty-three million, six hundred sixty-one thousand, four hundred eleven".