69381648 has 90 divisors (see below), whose sum is σ = 225896814. Its totient is φ = 19821312.

The previous prime is 69381643. The next prime is 69381667. The reversal of 69381648 is 84618396.

It can be written as a sum of positive squares in only one way, i.e., 59721984 + 9659664 = 7728^2 + 3108^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (69381643) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2140 + ... + 11972.

Almost surely, 2^69381648 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 69381648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112948407).

69381648 is an abundant number, since it is smaller than the sum of its proper divisors (156515166).

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

69381648 is a wasteful number, since it uses less digits than its factorization.

69381648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9861 (or 9845 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 69381648 is about 8329.5646945084. The cubic root of 69381648 is about 410.9114128784.

The spelling of 69381648 in words is "sixty-nine million, three hundred eighty-one thousand, six hundred forty-eight".