69108642 has 12 divisors (see below), whose sum is σ = 149735430. Its totient is φ = 23036208.

The previous prime is 69108617. The next prime is 69108649. The reversal of 69108642 is 24680196.

69108642 is a `hidden beast` number, since 6 + 9 + 1 + 0 + 8 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64786401 + 4322241 = 8049^2 + 2079^2 .

It is a junction number, because it is equal to n+sod(n) for n = 69108597 and 69108606.

It is not an unprimeable number, because it can be changed into a prime (69108649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1919667 + ... + 1919702.

Almost surely, 2^69108642 is an apocalyptic number.

69108642 is an abundant number, since it is smaller than the sum of its proper divisors (80626788).

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

69108642 is a wasteful number, since it uses less digits than its factorization.

69108642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839377 (or 3839374 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 69108642 is about 8313.1607707297. The cubic root of 69108642 is about 410.3717469122.

The spelling of 69108642 in words is "sixty-nine million, one hundred eight thousand, six hundred forty-two".