406820089 has 8 divisors (see below), whose sum is σ = 439165440. Its totient is φ = 374624976.

The previous prime is 406820087. The next prime is 406820111. The reversal of 406820089 is 980028604.

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 406820089 - 2¹ = 406820087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406820083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31897 + ... + 42790.

It is an arithmetic number, because the mean of its divisors is an integer number (54895680).

Almost surely, 2^406820089 is an apocalyptic number.

It is an amenable number.

406820089 is a deficient number, since it is larger than the sum of its proper divisors (32345351).

406820089 is a wasteful number, since it uses less digits than its factorization.

406820089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75119.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 406820089 is about 20169.7815803741. The cubic root of 406820089 is about 740.9702934165.

It can be divided in two parts, 4068200 and 89, that added together give a square (4068289 = 2017²).

The spelling of 406820089 in words is "four hundred six million, eight hundred twenty thousand, eighty-nine".