68759489 has 8 divisors (see below), whose sum is σ = 72409920. Its totient is φ = 65164176.

The previous prime is 68759473. The next prime is 68759491. The reversal of 68759489 is 98495786.

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

It is a cyclic number.

It is not a de Polignac number, because 68759489 - 2⁴ = 68759473 is a prime.

It is a super-2 number, since 2×68759489² = 9455734655082242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68759459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11207 + ... + 16220.

It is an arithmetic number, because the mean of its divisors is an integer number (9051240).

Almost surely, 2^68759489 is an apocalyptic number.

It is an amenable number.

68759489 is a deficient number, since it is larger than the sum of its proper divisors (3650431).

68759489 is a wasteful number, since it uses less digits than its factorization.

68759489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27559.

The product of its digits is 4354560, while the sum is 56.

The square root of 68759489 is about 8292.1341643753. The cubic root of 68759489 is about 409.6794818018.

The spelling of 68759489 in words is "sixty-eight million, seven hundred fifty-nine thousand, four hundred eighty-nine".