1997614097 has 2 divisors, whose sum is σ = 1997614098. Its totient is φ = 1997614096.

The previous prime is 1997614051. The next prime is 1997614139. The reversal of 1997614097 is 7904167991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1921156561 + 76457536 = 43831^2 + 8744^2 .

It is a cyclic number.

It is not a de Polignac number, because 1997614097 - 2⁸ = 1997613841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1997614027) 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, 998807048 + 998807049.

It is an arithmetic number, because the mean of its divisors is an integer number (998807049).

Almost surely, 2^1997614097 is an apocalyptic number.

It is an amenable number.

1997614097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1997614097 is an equidigital number, since it uses as much as digits as its factorization.

1997614097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 53.

The square root of 1997614097 is about 44694.6763832115. The cubic root of 1997614097 is about 1259.4198423011.

The spelling of 1997614097 in words is "one billion, nine hundred ninety-seven million, six hundred fourteen thousand, ninety-seven".