673236543 has 16 divisors (see below), whose sum is σ = 1026248960. Its totient is φ = 384569856.

The previous prime is 673236539. The next prime is 673236607. The reversal of 673236543 is 345632376.

It is a happy number.

It is not a de Polignac number, because 673236543 - 2² = 673236539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673236503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103071 + ... + 109407.

It is an arithmetic number, because the mean of its divisors is an integer number (64140560).

Almost surely, 2^673236543 is an apocalyptic number.

673236543 is a deficient number, since it is larger than the sum of its proper divisors (353012417).

673236543 is a wasteful number, since it uses less digits than its factorization.

673236543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11406.

The product of its digits is 272160, while the sum is 39.

The square root of 673236543 is about 25946.8021729076. The cubic root of 673236543 is about 876.4407471714.

The spelling of 673236543 in words is "six hundred seventy-three million, two hundred thirty-six thousand, five hundred forty-three".