667488748 has 24 divisors (see below), whose sum is σ = 1239108192. Its totient is φ = 313530624.

The previous prime is 667488721. The next prime is 667488761. The reversal of 667488748 is 847884766.

667488748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 667488692 and 667488701.

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, 29065 + ... + 46687.

It is an arithmetic number, because the mean of its divisors is an integer number (51629508).

Almost surely, 2^667488748 is an apocalyptic number.

667488748 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

667488748 is a deficient number, since it is larger than the sum of its proper divisors (571619444).

667488748 is a wasteful number, since it uses less digits than its factorization.

667488748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18201 (or 18199 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 58.

The square root of 667488748 is about 25835.8036066231. The cubic root of 667488748 is about 873.9393943387.

The spelling of 667488748 in words is "six hundred sixty-seven million, four hundred eighty-eight thousand, seven hundred forty-eight".