1012397 has 2 divisors, whose sum is σ = 1012398. Its totient is φ = 1012396.

The previous prime is 1012379. The next prime is 1012399. The reversal of 1012397 is 7932101.

Together with previous prime (1012379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1012036 + 361 = 1006^2 + 19^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012397 - 2¹⁶ = 946861 is a prime.

Together with 1012399, 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 (1012399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506198 + 506199.

It is an arithmetic number, because the mean of its divisors is an integer number (506199).

2^1012397 is an apocalyptic number.

It is an amenable number.

1012397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012397 is an equidigital number, since it uses as much as digits as its factorization.

1012397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1012397 is about 1006.1794074617. The cubic root of 1012397 is about 100.4115373799.

Adding to 1012397 its reverse (7932101), we get a palindrome (8944498).

The spelling of 1012397 in words is "one million, twelve thousand, three hundred ninety-seven".