23271397 has 2 divisors, whose sum is σ = 23271398. Its totient is φ = 23271396.

The previous prime is 23271383. The next prime is 23271407. The reversal of 23271397 is 79317232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15256836 + 8014561 = 3906^2 + 2831^2 .

It is a cyclic number.

It is not a de Polignac number, because 23271397 - 2¹¹ = 23269349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23271337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11635698 + 11635699.

It is an arithmetic number, because the mean of its divisors is an integer number (11635699).

Almost surely, 2^23271397 is an apocalyptic number.

It is an amenable number.

23271397 is a deficient number, since it is larger than the sum of its proper divisors (1).

23271397 is an equidigital number, since it uses as much as digits as its factorization.

23271397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 34.

The square root of 23271397 is about 4824.0436357894. The cubic root of 23271397 is about 285.5009022354.

The spelling of 23271397 in words is "twenty-three million, two hundred seventy-one thousand, three hundred ninety-seven".