491034829 has 2 divisors, whose sum is σ = 491034830. Its totient is φ = 491034828.

The previous prime is 491034809. The next prime is 491034839. The reversal of 491034829 is 928430194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357285604 + 133749225 = 18902^2 + 11565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-491034829 is a prime.

It is a super-2 number, since 2×491034829² = 482230406582118482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 491034791 and 491034800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (491034809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245517414 + 245517415.

It is an arithmetic number, because the mean of its divisors is an integer number (245517415).

Almost surely, 2^491034829 is an apocalyptic number.

It is an amenable number.

491034829 is a deficient number, since it is larger than the sum of its proper divisors (1).

491034829 is an equidigital number, since it uses as much as digits as its factorization.

491034829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 491034829 is about 22159.3056976070. The cubic root of 491034829 is about 788.9281136800.

The spelling of 491034829 in words is "four hundred ninety-one million, thirty-four thousand, eight hundred twenty-nine".