47097797 has 2 divisors, whose sum is σ = 47097798. Its totient is φ = 47097796.

The previous prime is 47097763. The next prime is 47097811. The reversal of 47097797 is 79779074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46321636 + 776161 = 6806^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 47097797 - 2⁸ = 47097541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47097727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23548898 + 23548899.

It is an arithmetic number, because the mean of its divisors is an integer number (23548899).

Almost surely, 2^47097797 is an apocalyptic number.

It is an amenable number.

47097797 is a deficient number, since it is larger than the sum of its proper divisors (1).

47097797 is an equidigital number, since it uses as much as digits as its factorization.

47097797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777924, while the sum is 50.

The square root of 47097797 is about 6862.7834731980. The cubic root of 47097797 is about 361.1327412439.

The spelling of 47097797 in words is "forty-seven million, ninety-seven thousand, seven hundred ninety-seven".