68707428 has 48 divisors (see below), whose sum is σ = 164574144. Its totient is φ = 22302720.

The previous prime is 68707427. The next prime is 68707433. The reversal of 68707428 is 82470786.

It is a self number, because there is not a number n which added to its sum of digits gives 68707428.

It is not an unprimeable number, because it can be changed into a prime (68707423) 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, 77548 + ... + 78428.

It is an arithmetic number, because the mean of its divisors is an integer number (3428628).

Almost surely, 2^68707428 is an apocalyptic number.

It is an amenable number.

68707428 is an abundant number, since it is smaller than the sum of its proper divisors (95866716).

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

68707428 is a wasteful number, since it uses less digits than its factorization.

68707428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 68707428 is about 8288.9943901537. The cubic root of 68707428 is about 409.5760599131.

The spelling of 68707428 in words is "sixty-eight million, seven hundred seven thousand, four hundred twenty-eight".