673463736 has 144 divisors (see below), whose sum is σ = 2092643280. Its totient is φ = 195148800.

The previous prime is 673463719. The next prime is 673463737. The reversal of 673463736 is 637364376.

673463736 is a `hidden beast` number, since 6 + 7 + 3 + 4 + 637 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 673463691 and 673463700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673463737) 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 35 ways as a sum of consecutive naturals, for example, 198696 + ... + 202056.

It is an arithmetic number, because the mean of its divisors is an integer number (14532245).

Almost surely, 2^673463736 is an apocalyptic number.

673463736 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673463736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046321640).

673463736 is an abundant number, since it is smaller than the sum of its proper divisors (1419179544).

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

673463736 is a wasteful number, since it uses less digits than its factorization.

673463736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418 (or 3400 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 45.

The square root of 673463736 is about 25951.1798575710. The cubic root of 673463736 is about 876.5393251082.

The spelling of 673463736 in words is "six hundred seventy-three million, four hundred sixty-three thousand, seven hundred thirty-six".