69813768 has 64 divisors (see below), whose sum is σ = 181684800. Its totient is φ = 22337280.

The previous prime is 69813761. The next prime is 69813797. The reversal of 69813768 is 86731896.

It is not an unprimeable number, because it can be changed into a prime (69813761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62398 + ... + 63506.

It is an arithmetic number, because the mean of its divisors is an integer number (2838825).

Almost surely, 2^69813768 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 69813768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90842400).

69813768 is an abundant number, since it is smaller than the sum of its proper divisors (111871032).

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

69813768 is a wasteful number, since it uses less digits than its factorization.

69813768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 1218 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 69813768 is about 8355.4633623755. The cubic root of 69813768 is about 411.7627219528.

The spelling of 69813768 in words is "sixty-nine million, eight hundred thirteen thousand, seven hundred sixty-eight".