423736253 has 4 divisors (see below), whose sum is σ = 423857148. Its totient is φ = 423615360.

The previous prime is 423736231. The next prime is 423736259. The reversal of 423736253 is 352637324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 166358404 + 257377849 = 12898^2 + 16043^2 .

It is a cyclic number.

It is not a de Polignac number, because 423736253 - 2⁸ = 423735997 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 (423736259) 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, 55028 + ... + 62253.

It is an arithmetic number, because the mean of its divisors is an integer number (105964287).

Almost surely, 2^423736253 is an apocalyptic number.

It is an amenable number.

423736253 is a deficient number, since it is larger than the sum of its proper divisors (120895).

423736253 is a wasteful number, since it uses less digits than its factorization.

423736253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120894.

The product of its digits is 90720, while the sum is 35.

The square root of 423736253 is about 20584.8549424085. The cubic root of 423736253 is about 751.1013466631.

The spelling of 423736253 in words is "four hundred twenty-three million, seven hundred thirty-six thousand, two hundred fifty-three".