69478668 has 144 divisors (see below), whose sum is σ = 220886400. Its totient is φ = 18779040.

The previous prime is 69478667. The next prime is 69478679. The reversal of 69478668 is 86687496.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (69478667) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100203 + ... + 100893.

Almost surely, 2^69478668 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 69478668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110443200).

69478668 is an abundant number, since it is smaller than the sum of its proper divisors (151407732).

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

69478668 is a wasteful number, since it uses less digits than its factorization.

69478668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 722 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 69478668 is about 8335.3864937386. The cubic root of 69478668 is about 411.1028566695.

The spelling of 69478668 in words is "sixty-nine million, four hundred seventy-eight thousand, six hundred sixty-eight".