673236534 has 32 divisors (see below), whose sum is σ = 1392213600. Its totient is φ = 216870912.

The previous prime is 673236527. The next prime is 673236539. The reversal of 673236534 is 435632376.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 673236492 and 673236501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673236539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22902 + ... + 43254.

It is an arithmetic number, because the mean of its divisors is an integer number (43506675).

Almost surely, 2^673236534 is an apocalyptic number.

673236534 is an abundant number, since it is smaller than the sum of its proper divisors (718977066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673236534 is a wasteful number, since it uses less digits than its factorization.

673236534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20544.

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

The square root of 673236534 is about 25946.8019994758. The cubic root of 673236534 is about 876.4407432659.

The spelling of 673236534 in words is "six hundred seventy-three million, two hundred thirty-six thousand, five hundred thirty-four".