23117434 has 12 divisors (see below), whose sum is σ = 35406234. Its totient is φ = 11316344.

The previous prime is 23117431. The next prime is 23117441. The reversal of 23117434 is 43471132.

It can be written as a sum of positive squares in only one way, i.e., 17665209 + 5452225 = 4203^2 + 2335^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23117399 and 23117408.

It is not an unprimeable number, because it can be changed into a prime (23117431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49269 + ... + 49735.

Almost surely, 2^23117434 is an apocalyptic number.

23117434 is a deficient number, since it is larger than the sum of its proper divisors (12288800).

23117434 is an frugal number, since it uses more digits than its factorization.

23117434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989 (or 522 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 23117434 is about 4808.0592758409. The cubic root of 23117434 is about 284.8698862313.

Adding to 23117434 its reverse (43471132), we get a palindrome (66588566).

The spelling of 23117434 in words is "twenty-three million, one hundred seventeen thousand, four hundred thirty-four".