673840536 has 32 divisors (see below), whose sum is σ = 1694349360. Its totient is φ = 223313792.

The previous prime is 673840513. The next prime is 673840547. The reversal of 673840536 is 635048376.

673840536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×673840536² = 908122135913534592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76995 + ... + 85298.

Almost surely, 2^673840536 is an apocalyptic number.

It is an amenable number.

673840536 is an abundant number, since it is smaller than the sum of its proper divisors (1020508824).

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

673840536 is a wasteful number, since it uses less digits than its factorization.

673840536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162475 (or 162471 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 673840536 is about 25958.4386279298. The cubic root of 673840536 is about 876.7027679299.

It can be divided in two parts, 6738 and 40536, that added together give a palindrome (47274).

The spelling of 673840536 in words is "six hundred seventy-three million, eight hundred forty thousand, five hundred thirty-six".