673873831 has 2 divisors, whose sum is σ = 673873832. Its totient is φ = 673873830.

The previous prime is 673873801. The next prime is 673873901. The reversal of 673873831 is 138378376.

673873831 = T₂₁₁₉₄ + T₂₁₁₉₅ + T₂₁₁₉₆.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 673873831 - 2⁵ = 673873799 is a prime.

It is a super-2 number, since 2×673873831² = 908211880213233122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673873801) 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, 336936915 + 336936916.

It is an arithmetic number, because the mean of its divisors is an integer number (336936916).

Almost surely, 2^673873831 is an apocalyptic number.

673873831 is the 21196-th centered triangular number.

673873831 is a deficient number, since it is larger than the sum of its proper divisors (1).

673873831 is an equidigital number, since it uses as much as digits as its factorization.

673873831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The square root of 673873831 is about 25959.0799336186. The cubic root of 673873831 is about 876.7172072205.

The spelling of 673873831 in words is "six hundred seventy-three million, eight hundred seventy-three thousand, eight hundred thirty-one".