1210897 has 2 divisors, whose sum is σ = 1210898. Its totient is φ = 1210896.

The previous prime is 1210883. The next prime is 1210903. The reversal of 1210897 is 7980121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1164241 + 46656 = 1079^2 + 216^2 .

It is an emirp because it is prime and its reverse (7980121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1210897 - 2¹¹ = 1208849 is a prime.

It is equal to p₉₃₆₈₂ and since 1210897 and 93682 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1210817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605448 + 605449.

It is an arithmetic number, because the mean of its divisors is an integer number (605449).

2^1210897 is an apocalyptic number.

It is an amenable number.

1210897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210897 is an equidigital number, since it uses as much as digits as its factorization.

1210897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1210897 is about 1100.4076517364. The cubic root of 1210897 is about 106.5865489964.

The spelling of 1210897 in words is "one million, two hundred ten thousand, eight hundred ninety-seven".