68790544 has 20 divisors (see below), whose sum is σ = 134244880. Its totient is φ = 34146720.

The previous prime is 68790541. The next prime is 68790559. The reversal of 68790544 is 44509786.

It is a self number, because there is not a number n which added to its sum of digits gives 68790544.

It is not an unprimeable number, because it can be changed into a prime (68790541) 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, 13242 + ... + 17689.

It is an arithmetic number, because the mean of its divisors is an integer number (6712244).

Almost surely, 2^68790544 is an apocalyptic number.

It is an amenable number.

68790544 is a deficient number, since it is larger than the sum of its proper divisors (65454336).

68790544 is a wasteful number, since it uses less digits than its factorization.

68790544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31078 (or 31072 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 68790544 is about 8294.0065107281. The cubic root of 68790544 is about 409.7411493215.

The spelling of 68790544 in words is "sixty-eight million, seven hundred ninety thousand, five hundred forty-four".