23086421 has 2 divisors, whose sum is σ = 23086422. Its totient is φ = 23086420.

The previous prime is 23086417. The next prime is 23086423. The reversal of 23086421 is 12468032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22905796 + 180625 = 4786^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 23086421 - 2² = 23086417 is a prime.

Together with 23086423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23086423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11543210 + 11543211.

It is an arithmetic number, because the mean of its divisors is an integer number (11543211).

Almost surely, 2^23086421 is an apocalyptic number.

It is an amenable number.

23086421 is a deficient number, since it is larger than the sum of its proper divisors (1).

23086421 is an equidigital number, since it uses as much as digits as its factorization.

23086421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 23086421 is about 4804.8330876317. The cubic root of 23086421 is about 284.7424409531.

The spelling of 23086421 in words is "twenty-three million, eighty-six thousand, four hundred twenty-one".