672696648 has 96 divisors (see below), whose sum is σ = 1977830400. Its totient is φ = 205317504.

The previous prime is 672696643. The next prime is 672696727. The reversal of 672696648 is 846696276.

It is a junction number, because it is equal to n+sod(n) for n = 672696594 and 672696603.

It is not an unprimeable number, because it can be changed into a prime (672696643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116043 + ... + 121701.

It is an arithmetic number, because the mean of its divisors is an integer number (20602400).

Almost surely, 2^672696648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672696648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988915200).

672696648 is an abundant number, since it is smaller than the sum of its proper divisors (1305133752).

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

672696648 is a wasteful number, since it uses less digits than its factorization.

672696648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5811 (or 5804 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 672696648 is about 25936.3962030194. The cubic root of 672696648 is about 876.2064003546.

The spelling of 672696648 in words is "six hundred seventy-two million, six hundred ninety-six thousand, six hundred forty-eight".