471497797 has 2 divisors, whose sum is σ = 471497798. Its totient is φ = 471497796.

The previous prime is 471497791. The next prime is 471497801. The reversal of 471497797 is 797794174.

It is a happy number.

It is a Cunningham number, because it is equal to 21714²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 471497796 + 1 = 21714^2 + 1^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-471497797 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 (471497791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235748898 + 235748899.

It is an arithmetic number, because the mean of its divisors is an integer number (235748899).

Almost surely, 2^471497797 is an apocalyptic number.

It is an amenable number.

471497797 is a deficient number, since it is larger than the sum of its proper divisors (1).

471497797 is an equidigital number, since it uses as much as digits as its factorization.

471497797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3111696, while the sum is 55.

The square root of 471497797 is about 21714.0000230266. Note that the first 4 decimals coincide. The cubic root of 471497797 is about 778.3230447167.

It can be divided in two parts, 47149 and 7797, that added together give a triangular number (54946 = T₃₃₁).

The spelling of 471497797 in words is "four hundred seventy-one million, four hundred ninety-seven thousand, seven hundred ninety-seven".