490771247 has 2 divisors, whose sum is σ = 490771248. Its totient is φ = 490771246.

The previous prime is 490771243. The next prime is 490771279. The reversal of 490771247 is 742177094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490771247 - 2² = 490771243 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 (490771243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245385623 + 245385624.

It is an arithmetic number, because the mean of its divisors is an integer number (245385624).

Almost surely, 2^490771247 is an apocalyptic number.

490771247 is a deficient number, since it is larger than the sum of its proper divisors (1).

490771247 is an equidigital number, since it uses as much as digits as its factorization.

490771247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 490771247 is about 22153.3574656304. The cubic root of 490771247 is about 788.7869258207.

The spelling of 490771247 in words is "four hundred ninety million, seven hundred seventy-one thousand, two hundred forty-seven".