691200048 has 320 divisors, whose sum is σ = 2386132992. Its totient is φ = 167101440.

The previous prime is 691200043. The next prime is 691200061. The reversal of 691200048 is 840002196.

It is a junction number, because it is equal to n+sod(n) for n = 691199988 and 691200024.

It is not an unprimeable number, because it can be changed into a prime (691200043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3995290 + ... + 3995462.

Almost surely, 2^691200048 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 691200048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1193066496).

691200048 is an abundant number, since it is smaller than the sum of its proper divisors (1694932944).

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

691200048 is a wasteful number, since it uses less digits than its factorization.

691200048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 691200048 is about 26290.6836731189. The cubic root of 691200048 is about 884.1675801405.

The spelling of 691200048 in words is "six hundred ninety-one million, two hundred thousand, forty-eight".