491627 has 2 divisors, whose sum is σ = 491628. Its totient is φ = 491626.

The previous prime is 491611. The next prime is 491633. The reversal of 491627 is 726194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 491627 - 2⁴ = 491611 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 491627.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491627.

It is not a weakly prime, because it can be changed into another prime (491677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245813 + 245814.

It is an arithmetic number, because the mean of its divisors is an integer number (245814).

2⁴⁹¹⁶²⁷ is an apocalyptic number.

491627 is a deficient number, since it is larger than the sum of its proper divisors (1).

491627 is an equidigital number, since it uses as much as digits as its factorization.

491627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 491627 is about 701.1611797583. The cubic root of 491627 is about 78.9245126274.

The spelling of 491627 in words is "four hundred ninety-one thousand, six hundred twenty-seven".