262198397 has 2 divisors, whose sum is σ = 262198398. Its totient is φ = 262198396.

The previous prime is 262198381. The next prime is 262198399. The reversal of 262198397 is 793891262.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162078361 + 100120036 = 12731^2 + 10006^2 .

It is a cyclic number.

It is not a de Polignac number, because 262198397 - 2⁴ = 262198381 is a prime.

Together with 262198399, 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 (262198399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131099198 + 131099199.

It is an arithmetic number, because the mean of its divisors is an integer number (131099199).

Almost surely, 2^262198397 is an apocalyptic number.

It is an amenable number.

262198397 is a deficient number, since it is larger than the sum of its proper divisors (1).

262198397 is an equidigital number, since it uses as much as digits as its factorization.

262198397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 262198397 is about 16192.5414002867. The cubic root of 262198397 is about 640.0442653303.

The spelling of 262198397 in words is "two hundred sixty-two million, one hundred ninety-eight thousand, three hundred ninety-seven".