1673256829 has 2 divisors, whose sum is σ = 1673256830. Its totient is φ = 1673256828.

The previous prime is 1673256803. The next prime is 1673256947. The reversal of 1673256829 is 9286523761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 876041604 + 797215225 = 29598^2 + 28235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673256829 - 2¹⁵ = 1673224061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1673256329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836628414 + 836628415.

It is an arithmetic number, because the mean of its divisors is an integer number (836628415).

Almost surely, 2^1673256829 is an apocalyptic number.

It is an amenable number.

1673256829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673256829 is an equidigital number, since it uses as much as digits as its factorization.

1673256829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 1673256829 is about 40905.4620924883. The cubic root of 1673256829 is about 1187.1917466049.

The spelling of 1673256829 in words is "one billion, six hundred seventy-three million, two hundred fifty-six thousand, eight hundred twenty-nine".