70806 has 8 divisors (see below), whose sum is σ = 141624. Its totient is φ = 23600.

The previous prime is 70793. The next prime is 70823. The reversal of 70806 is 60807.

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

70806 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5895 + ... + 5906.

It is an arithmetic number, because the mean of its divisors is an integer number (17703).

2⁷⁰⁸⁰⁶ is an apocalyptic number.

70806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70812).

70806 is a wasteful number, since it uses less digits than its factorization.

70806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11806.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 70806 is about 266.0939683646. The cubic root of 70806 is about 41.3704286014.

Subtracting from 70806 its reverse (60807), we obtain a palindrome (9999).

The spelling of 70806 in words is "seventy thousand, eight hundred six".