806609437 has 8 divisors (see below), whose sum is σ = 826174976. Its totient is φ = 787080672.

The previous prime is 806609423. The next prime is 806609443. The reversal of 806609437 is 734906608.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806609437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 806609393 and 806609402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806609467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38113 + ... + 55369.

It is an arithmetic number, because the mean of its divisors is an integer number (103271872).

Almost surely, 2^806609437 is an apocalyptic number.

It is an amenable number.

806609437 is a deficient number, since it is larger than the sum of its proper divisors (19565539).

806609437 is a wasteful number, since it uses less digits than its factorization.

806609437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18387.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 806609437 is about 28400.8703563817. The cubic root of 806609437 is about 930.8672824483.

The spelling of 806609437 in words is "eight hundred six million, six hundred nine thousand, four hundred thirty-seven".