23093621 has 2 divisors, whose sum is σ = 23093622. Its totient is φ = 23093620.

The previous prime is 23093573. The next prime is 23093639. The reversal of 23093621 is 12639032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12602500 + 10491121 = 3550^2 + 3239^2 .

It is a cyclic number.

It is not a de Polignac number, because 23093621 - 2⁶ = 23093557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23093641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11546810 + 11546811.

It is an arithmetic number, because the mean of its divisors is an integer number (11546811).

Almost surely, 2^23093621 is an apocalyptic number.

It is an amenable number.

23093621 is a deficient number, since it is larger than the sum of its proper divisors (1).

23093621 is an equidigital number, since it uses as much as digits as its factorization.

23093621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 23093621 is about 4805.5822748133. The cubic root of 23093621 is about 284.7720389071.

The spelling of 23093621 in words is "twenty-three million, ninety-three thousand, six hundred twenty-one".