68751089 has 4 divisors (see below), whose sum is σ = 75001200. Its totient is φ = 62500980.

The previous prime is 68751073. The next prime is 68751091. The reversal of 68751089 is 98015786.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68751089 - 2⁴ = 68751073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68751589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3125039 + ... + 3125060.

It is an arithmetic number, because the mean of its divisors is an integer number (18750300).

Almost surely, 2^68751089 is an apocalyptic number.

It is an amenable number.

68751089 is a deficient number, since it is larger than the sum of its proper divisors (6250111).

68751089 is a wasteful number, since it uses less digits than its factorization.

68751089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250110.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 68751089 is about 8291.6276447993. The cubic root of 68751089 is about 409.6627982971.

It can be divided in two parts, 68 and 751089, that added together give a palindrome (751157).

The spelling of 68751089 in words is "sixty-eight million, seven hundred fifty-one thousand, eighty-nine".