68928552 has 96 divisors (see below), whose sum is σ = 232764480. Its totient is φ = 17902080.

The previous prime is 68928551. The next prime is 68928577. The reversal of 68928552 is 25582986.

68928552 is a `hidden beast` number, since 6 + 8 + 92 + 8 + 552 = 666.

It is a super-2 number, since 2×68928552² = 9502290561633408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68928498 and 68928507.

It is not an unprimeable number, because it can be changed into a prime (68928551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 673 + ... + 11760.

It is an arithmetic number, because the mean of its divisors is an integer number (2424630).

Almost surely, 2^68928552 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 68928552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116382240).

68928552 is an abundant number, since it is smaller than the sum of its proper divisors (163835928).

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

68928552 is a wasteful number, since it uses less digits than its factorization.

68928552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12463 (or 12456 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 68928552 is about 8302.3220848146. The cubic root of 68928552 is about 410.0149746662.

It can be divided in two parts, 689 and 28552, that added together give a square (29241 = 171²).

The spelling of 68928552 in words is "sixty-eight million, nine hundred twenty-eight thousand, five hundred fifty-two".