499022197 has 2 divisors, whose sum is σ = 499022198. Its totient is φ = 499022196.

The previous prime is 499022143. The next prime is 499022207. The reversal of 499022197 is 791220994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 496442961 + 2579236 = 22281^2 + 1606^2 .

It is a cyclic number.

It is not a de Polignac number, because 499022197 - 2²³ = 490633589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499028197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249511098 + 249511099.

It is an arithmetic number, because the mean of its divisors is an integer number (249511099).

Almost surely, 2^499022197 is an apocalyptic number.

It is an amenable number.

499022197 is a deficient number, since it is larger than the sum of its proper divisors (1).

499022197 is an equidigital number, since it uses as much as digits as its factorization.

499022197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 499022197 is about 22338.8047352583. The cubic root of 499022197 is about 793.1827998442.

The spelling of 499022197 in words is "four hundred ninety-nine million, twenty-two thousand, one hundred ninety-seven".