68761089 has 16 divisors (see below), whose sum is σ = 102824640. Its totient is φ = 45410400.

The previous prime is 68761079. The next prime is 68761097. The reversal of 68761089 is 98016786.

It is a happy number.

It is not a de Polignac number, because 68761089 - 2¹⁵ = 68728321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68761079) 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, 9012 + ... + 14789.

It is an arithmetic number, because the mean of its divisors is an integer number (6426540).

Almost surely, 2^68761089 is an apocalyptic number.

It is an amenable number.

68761089 is a deficient number, since it is larger than the sum of its proper divisors (34063551).

68761089 is a wasteful number, since it uses less digits than its factorization.

68761089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23917 (or 23911 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 68761089 is about 8292.2306407866. The cubic root of 68761089 is about 409.6826594582.

It can be divided in two parts, 687 and 61089, that added together give a triangular number (61776 = T₃₅₁).

The spelling of 68761089 in words is "sixty-eight million, seven hundred sixty-one thousand, eighty-nine".