789420081 has 8 divisors (see below), whose sum is σ = 1053709120. Its totient is φ = 525705552.

The previous prime is 789420013. The next prime is 789420089. The reversal of 789420081 is 180024987.

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

It is not a de Polignac number, because 789420081 - 2¹¹ = 789418033 is a prime.

It is a super-2 number, since 2×789420081² = 1246368128572093122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (789420089) 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, 140410 + ... + 145923.

It is an arithmetic number, because the mean of its divisors is an integer number (131713640).

Almost surely, 2^789420081 is an apocalyptic number.

It is an amenable number.

789420081 is a deficient number, since it is larger than the sum of its proper divisors (264289039).

789420081 is a wasteful number, since it uses less digits than its factorization.

789420081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287255.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 789420081 is about 28096.6204551366. The cubic root of 789420081 is about 924.2072900779.

The spelling of 789420081 in words is "seven hundred eighty-nine million, four hundred twenty thousand, eighty-one".