222456797 has 2 divisors, whose sum is σ = 222456798. Its totient is φ = 222456796.

The previous prime is 222456779. The next prime is 222456833. The reversal of 222456797 is 797654222.

Together with previous prime (222456779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207043321 + 15413476 = 14389^2 + 3926^2 .

It is a cyclic number.

It is not a de Polignac number, because 222456797 - 2¹⁸ = 222194653 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 (222456757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111228398 + 111228399.

It is an arithmetic number, because the mean of its divisors is an integer number (111228399).

Almost surely, 2^222456797 is an apocalyptic number.

It is an amenable number.

222456797 is a deficient number, since it is larger than the sum of its proper divisors (1).

222456797 is an equidigital number, since it uses as much as digits as its factorization.

222456797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 44.

The square root of 222456797 is about 14914.9856520213. The cubic root of 222456797 is about 605.9199146602.

The spelling of 222456797 in words is "two hundred twenty-two million, four hundred fifty-six thousand, seven hundred ninety-seven".