1027243897 has 2 divisors, whose sum is σ = 1027243898. Its totient is φ = 1027243896.

The previous prime is 1027243883. The next prime is 1027243901. The reversal of 1027243897 is 7983427201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 837465721 + 189778176 = 28939^2 + 13776^2 .

It is a cyclic number.

It is not a de Polignac number, because 1027243897 - 2⁷ = 1027243769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1027243817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513621948 + 513621949.

It is an arithmetic number, because the mean of its divisors is an integer number (513621949).

Almost surely, 2^1027243897 is an apocalyptic number.

It is an amenable number.

1027243897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027243897 is an equidigital number, since it uses as much as digits as its factorization.

1027243897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 1027243897 is about 32050.6458125261. The cubic root of 1027243897 is about 1009.0000550054. Note that the first 4 decimals are identical.

The spelling of 1027243897 in words is "one billion, twenty-seven million, two hundred forty-three thousand, eight hundred ninety-seven".