23170429 has 2 divisors, whose sum is σ = 23170430. Its totient is φ = 23170428.

The previous prime is 23170403. The next prime is 23170471. The reversal of 23170429 is 92407132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19598329 + 3572100 = 4427^2 + 1890^2 .

It is a cyclic number.

It is not a de Polignac number, because 23170429 - 2⁵ = 23170397 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23170397 and 23170406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23171429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11585214 + 11585215.

It is an arithmetic number, because the mean of its divisors is an integer number (11585215).

Almost surely, 2^23170429 is an apocalyptic number.

It is an amenable number.

23170429 is a deficient number, since it is larger than the sum of its proper divisors (1).

23170429 is an equidigital number, since it uses as much as digits as its factorization.

23170429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 23170429 is about 4813.5671803767. The cubic root of 23170429 is about 285.0874011204.

The spelling of 23170429 in words is "twenty-three million, one hundred seventy thousand, four hundred twenty-nine".