1967897 has 2 divisors, whose sum is σ = 1967898. Its totient is φ = 1967896.

The previous prime is 1967893. The next prime is 1967909. The reversal of 1967897 is 7987691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1915456 + 52441 = 1384^2 + 229^2 .

It is a cyclic number.

It is not a de Polignac number, because 1967897 - 2² = 1967893 is a prime.

It is a Chen prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (1967891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983948 + 983949.

It is an arithmetic number, because the mean of its divisors is an integer number (983949).

2^1967897 is an apocalyptic number.

It is an amenable number.

1967897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1967897 is an equidigital number, since it uses as much as digits as its factorization.

1967897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 47.

The square root of 1967897 is about 1402.8175219892. The cubic root of 1967897 is about 125.3143448360.

The spelling of 1967897 in words is "one million, nine hundred sixty-seven thousand, eight hundred ninety-seven".