829740487 has 2 divisors, whose sum is σ = 829740488. Its totient is φ = 829740486.

The previous prime is 829740473. The next prime is 829740497. The reversal of 829740487 is 784047928.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-829740487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 829740487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (829740497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414870243 + 414870244.

It is an arithmetic number, because the mean of its divisors is an integer number (414870244).

Almost surely, 2^829740487 is an apocalyptic number.

829740487 is a deficient number, since it is larger than the sum of its proper divisors (1).

829740487 is an equidigital number, since it uses as much as digits as its factorization.

829740487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 829740487 is about 28805.2163157995. The cubic root of 829740487 is about 939.6816814890.

It can be divided in two parts, 8297 and 40487, that added together give a palindrome (48784).

The spelling of 829740487 in words is "eight hundred twenty-nine million, seven hundred forty thousand, four hundred eighty-seven".