490673791 has 2 divisors, whose sum is σ = 490673792. Its totient is φ = 490673790.

The previous prime is 490673767. The next prime is 490673809. The reversal of 490673791 is 197376094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 490673791 - 2⁷ = 490673663 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 (490673291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245336895 + 245336896.

It is an arithmetic number, because the mean of its divisors is an integer number (245336896).

Almost surely, 2^490673791 is an apocalyptic number.

490673791 is a deficient number, since it is larger than the sum of its proper divisors (1).

490673791 is an equidigital number, since it uses as much as digits as its factorization.

490673791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 490673791 is about 22151.1577801252. The cubic root of 490673791 is about 788.7347106539.

The spelling of 490673791 in words is "four hundred ninety million, six hundred seventy-three thousand, seven hundred ninety-one".