68538345 has 16 divisors (see below), whose sum is σ = 112212672. Its totient is φ = 35703360.

The previous prime is 68538341. The next prime is 68538389. The reversal of 68538345 is 54383586.

It is not a de Polignac number, because 68538345 - 2² = 68538341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68538297 and 68538306.

It is not an unprimeable number, because it can be changed into a prime (68538341) 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, 52486 + ... + 53775.

It is an arithmetic number, because the mean of its divisors is an integer number (7013292).

Almost surely, 2^68538345 is an apocalyptic number.

It is an amenable number.

68538345 is a deficient number, since it is larger than the sum of its proper divisors (43674327).

68538345 is a wasteful number, since it uses less digits than its factorization.

68538345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106312.

The product of its digits is 345600, while the sum is 42.

The square root of 68538345 is about 8278.7888606970. The cubic root of 68538345 is about 409.2398069210.

The spelling of 68538345 in words is "sixty-eight million, five hundred thirty-eight thousand, three hundred forty-five".