1667913097 has 2 divisors, whose sum is σ = 1667913098. Its totient is φ = 1667913096.

The previous prime is 1667913083. The next prime is 1667913101. The reversal of 1667913097 is 7903197661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 877403641 + 790509456 = 29621^2 + 28116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1667913097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1667913097.

It is not a weakly prime, because it can be changed into another prime (1667916097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 833956548 + 833956549.

It is an arithmetic number, because the mean of its divisors is an integer number (833956549).

Almost surely, 2^1667913097 is an apocalyptic number.

It is an amenable number.

1667913097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1667913097 is an equidigital number, since it uses as much as digits as its factorization.

1667913097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 1667913097 is about 40840.0917849116. The cubic root of 1667913097 is about 1185.9265891618.

The spelling of 1667913097 in words is "one billion, six hundred sixty-seven million, nine hundred thirteen thousand, ninety-seven".