68820072 has 16 divisors (see below), whose sum is σ = 172050240. Its totient is φ = 22940016.

The previous prime is 68820053. The next prime is 68820077. The reversal of 68820072 is 27002886.

It is not an unprimeable number, because it can be changed into a prime (68820077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433728 + ... + 1433775.

It is an arithmetic number, because the mean of its divisors is an integer number (10753140).

Almost surely, 2^68820072 is an apocalyptic number.

It is an amenable number.

68820072 is an abundant number, since it is smaller than the sum of its proper divisors (103230168).

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

68820072 is a wasteful number, since it uses less digits than its factorization.

68820072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867512 (or 2867508 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 68820072 is about 8295.7864003360. The cubic root of 68820072 is about 409.7997673875.

The spelling of 68820072 in words is "sixty-eight million, eight hundred twenty thousand, seventy-two".