673696650 has 96 divisors (see below), whose sum is σ = 1881593856. Its totient is φ = 158040000.

The previous prime is 673696649. The next prime is 673696679. The reversal of 673696650 is 56696376.

It is a self number, because there is not a number n which added to its sum of digits gives 673696650.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44565 + ... + 57735.

It is an arithmetic number, because the mean of its divisors is an integer number (19599936).

Almost surely, 2^673696650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673696650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940796928).

673696650 is an abundant number, since it is smaller than the sum of its proper divisors (1207897206).

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

673696650 is a wasteful number, since it uses less digits than its factorization.

673696650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13228 (or 13223 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 48.

The square root of 673696650 is about 25955.6670112714. The cubic root of 673696650 is about 876.6403623471.

The spelling of 673696650 in words is "six hundred seventy-three million, six hundred ninety-six thousand, six hundred fifty".