68400035 has 16 divisors (see below), whose sum is σ = 90472032. Its totient is φ = 49228800.

The previous prime is 68400023. The next prime is 68400037. The reversal of 68400035 is 53000486.

It is not a de Polignac number, because 68400035 - 2¹⁰ = 68399011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68399977 and 68400013.

It is not an unprimeable number, because it can be changed into a prime (68400037) 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 15 ways as a sum of consecutive naturals, for example, 1076 + ... + 11745.

It is an arithmetic number, because the mean of its divisors is an integer number (5654502).

Almost surely, 2^68400035 is an apocalyptic number.

68400035 is a deficient number, since it is larger than the sum of its proper divisors (22071997).

68400035 is a wasteful number, since it uses less digits than its factorization.

68400035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12934.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 68400035 is about 8270.4313672263. The cubic root of 68400035 is about 408.9643403211.

The spelling of 68400035 in words is "sixty-eight million, four hundred thousand, thirty-five".