491707 has 2 divisors, whose sum is σ = 491708. Its totient is φ = 491706.

The previous prime is 491677. The next prime is 491719. The reversal of 491707 is 707194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 491707 - 2¹¹ = 489659 is a prime.

It is not a weakly prime, because it can be changed into another prime (491737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245853 + 245854.

It is an arithmetic number, because the mean of its divisors is an integer number (245854).

2⁴⁹¹⁷⁰⁷ is an apocalyptic number.

491707 is a deficient number, since it is larger than the sum of its proper divisors (1).

491707 is an equidigital number, since it uses as much as digits as its factorization.

491707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 491707 is about 701.2182256616. The cubic root of 491707 is about 78.9287933921.

The spelling of 491707 in words is "four hundred ninety-one thousand, seven hundred seven".