23467421 has 2 divisors, whose sum is σ = 23467422. Its totient is φ = 23467420.

The previous prime is 23467399. The next prime is 23467439. The reversal of 23467421 is 12476432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22934521 + 532900 = 4789^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 23467421 - 2⁶ = 23467357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23467321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11733710 + 11733711.

It is an arithmetic number, because the mean of its divisors is an integer number (11733711).

Almost surely, 2^23467421 is an apocalyptic number.

It is an amenable number.

23467421 is a deficient number, since it is larger than the sum of its proper divisors (1).

23467421 is an equidigital number, since it uses as much as digits as its factorization.

23467421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 29.

The square root of 23467421 is about 4844.3184247116. The cubic root of 23467421 is about 286.3002901669.

The spelling of 23467421 in words is "twenty-three million, four hundred sixty-seven thousand, four hundred twenty-one".