23557349 has 2 divisors, whose sum is σ = 23557350. Its totient is φ = 23557348.

The previous prime is 23557307. The next prime is 23557361. The reversal of 23557349 is 94375532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13432225 + 10125124 = 3665^2 + 3182^2 .

It is a cyclic number.

It is not a de Polignac number, because 23557349 - 2¹⁶ = 23491813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23557399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11778674 + 11778675.

It is an arithmetic number, because the mean of its divisors is an integer number (11778675).

Almost surely, 2^23557349 is an apocalyptic number.

It is an amenable number.

23557349 is a deficient number, since it is larger than the sum of its proper divisors (1).

23557349 is an equidigital number, since it uses as much as digits as its factorization.

23557349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 38.

The square root of 23557349 is about 4853.5913507423. The cubic root of 23557349 is about 286.6655283592.

The spelling of 23557349 in words is "twenty-three million, five hundred fifty-seven thousand, three hundred forty-nine".