971194769 has 2 divisors, whose sum is σ = 971194770. Its totient is φ = 971194768.

The previous prime is 971194733. The next prime is 971194799. The reversal of 971194769 is 967491179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 970011025 + 1183744 = 31145^2 + 1088^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-971194769 is a prime.

It is a super-2 number, since 2×971194769² = 1886438558665926722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 971194769.

It is not a weakly prime, because it can be changed into another prime (971194799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485597384 + 485597385.

It is an arithmetic number, because the mean of its divisors is an integer number (485597385).

Almost surely, 2^971194769 is an apocalyptic number.

It is an amenable number.

971194769 is a deficient number, since it is larger than the sum of its proper divisors (1).

971194769 is an equidigital number, since it uses as much as digits as its factorization.

971194769 is an evil number, because the sum of its binary digits is even.

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

The square root of 971194769 is about 31163.9979623924. The cubic root of 971194769 is about 990.3045585439.

The spelling of 971194769 in words is "nine hundred seventy-one million, one hundred ninety-four thousand, seven hundred sixty-nine".