68999628 has 24 divisors (see below), whose sum is σ = 161618688. Its totient is φ = 22911376.

The previous prime is 68999611. The next prime is 68999629. The reversal of 68999628 is 82699986.

It is not an unprimeable number, because it can be changed into a prime (68999629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7776 + ... + 14087.

It is an arithmetic number, because the mean of its divisors is an integer number (6734112).

Almost surely, 2^68999628 is an apocalyptic number.

It is an amenable number.

68999628 is an abundant number, since it is smaller than the sum of its proper divisors (92619060).

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

68999628 is a wasteful number, since it uses less digits than its factorization.

68999628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22133 (or 22131 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 57.

The square root of 68999628 is about 8306.6014711192. The cubic root of 68999628 is about 410.1558558759.

The spelling of 68999628 in words is "sixty-eight million, nine hundred ninety-nine thousand, six hundred twenty-eight".