423799 has 8 divisors (see below), whose sum is σ = 442368. Its totient is φ = 405720.

The previous prime is 423791. The next prime is 423803. The reversal of 423799 is 997324.

423799 = T₄₄ + T₄₅ + ... + T₁₃₇.

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 423799 - 2³ = 423791 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423791) 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, 3274 + ... + 3400.

It is an arithmetic number, because the mean of its divisors is an integer number (55296).

2⁴²³⁷⁹⁹ is an apocalyptic number.

423799 is a deficient number, since it is larger than the sum of its proper divisors (18569).

423799 is a wasteful number, since it uses less digits than its factorization.

423799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245.

The product of its digits is 13608, while the sum is 34.

The square root of 423799 is about 650.9984638999. The cubic root of 423799 is about 75.1138419276.

The spelling of 423799 in words is "four hundred twenty-three thousand, seven hundred ninety-nine".