479717197 has 2 divisors, whose sum is σ = 479717198. Its totient is φ = 479717196.

The previous prime is 479717191. The next prime is 479717201. The reversal of 479717197 is 791717974.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430521001 + 49196196 = 20749^2 + 7014^2 .

It is a cyclic number.

It is not a de Polignac number, because 479717197 - 2²³ = 471328589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479717191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239858598 + 239858599.

It is an arithmetic number, because the mean of its divisors is an integer number (239858599).

Almost surely, 2^479717197 is an apocalyptic number.

It is an amenable number.

479717197 is a deficient number, since it is larger than the sum of its proper divisors (1).

479717197 is an equidigital number, since it uses as much as digits as its factorization.

479717197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777924, while the sum is 52.

The square root of 479717197 is about 21902.4472833517. The cubic root of 479717197 is about 782.8197290926.

The spelling of 479717197 in words is "four hundred seventy-nine million, seven hundred seventeen thousand, one hundred ninety-seven".