423561599 has 8 divisors (see below), whose sum is σ = 426746880. Its totient is φ = 420384376.

The previous prime is 423561577. The next prime is 423561643. The reversal of 423561599 is 995165324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423561599 - 2¹⁶ = 423496063 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 (423561199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138602 + ... + 141624.

It is an arithmetic number, because the mean of its divisors is an integer number (53343360).

Almost surely, 2^423561599 is an apocalyptic number.

423561599 is a deficient number, since it is larger than the sum of its proper divisors (3185281).

423561599 is a wasteful number, since it uses less digits than its factorization.

423561599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029.

The product of its digits is 291600, while the sum is 44.

The square root of 423561599 is about 20580.6122114965. The cubic root of 423561599 is about 750.9981371145.

The spelling of 423561599 in words is "four hundred twenty-three million, five hundred sixty-one thousand, five hundred ninety-nine".