68905532 has 6 divisors (see below), whose sum is σ = 120584688. Its totient is φ = 34452764.

The previous prime is 68905531. The next prime is 68905553. The reversal of 68905532 is 23550986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68905531) 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 as a sum of consecutive naturals, namely, 8613188 + ... + 8613195.

It is an arithmetic number, because the mean of its divisors is an integer number (20097448).

Almost surely, 2^68905532 is an apocalyptic number.

It is an amenable number.

68905532 is a deficient number, since it is larger than the sum of its proper divisors (51679156).

68905532 is a wasteful number, since it uses less digits than its factorization.

68905532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17226387 (or 17226385 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 68905532 is about 8300.9356099177. The cubic root of 68905532 is about 409.9693254862.

The spelling of 68905532 in words is "sixty-eight million, nine hundred five thousand, five hundred thirty-two".