68889704 has 16 divisors (see below), whose sum is σ = 139104420. Its totient is φ = 31795200.

The previous prime is 68889697. The next prime is 68889713. The reversal of 68889704 is 40798886.

It can be written as a sum of positive squares in 2 ways, for example, as 47748100 + 21141604 = 6910^2 + 4598^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 331097 + ... + 331304.

Almost surely, 2^68889704 is an apocalyptic number.

It is an amenable number.

68889704 is an abundant number, since it is smaller than the sum of its proper divisors (70214716).

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

68889704 is a wasteful number, since it uses less digits than its factorization.

68889704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662420 (or 662416 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 68889704 is about 8299.9821686555. The cubic root of 68889704 is about 409.9379323057.

The spelling of 68889704 in words is "sixty-eight million, eight hundred eighty-nine thousand, seven hundred four".