68960890 has 8 divisors (see below), whose sum is σ = 124129620. Its totient is φ = 27584352.

The previous prime is 68960887. The next prime is 68960909. The reversal of 68960890 is 9806986.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68906601 + 54289 = 8301^2 + 233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68960890.

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, 3448035 + ... + 3448054.

Almost surely, 2^68960890 is an apocalyptic number.

68960890 is a deficient number, since it is larger than the sum of its proper divisors (55168730).

68960890 is a wasteful number, since it uses less digits than its factorization.

68960890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6896096.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 68960890 is about 8304.2693838772. The cubic root of 68960890 is about 410.0790844867.

The spelling of 68960890 in words is "sixty-eight million, nine hundred sixty thousand, eight hundred ninety".