806623141 has 4 divisors (see below), whose sum is σ = 808171884. Its totient is φ = 805074400.

The previous prime is 806623121. The next prime is 806623163. The reversal of 806623141 is 141326608.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197964900 + 608658241 = 14070^2 + 24671^2 .

It is a cyclic number.

It is not a de Polignac number, because 806623141 - 2¹¹ = 806621093 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806623121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773590 + ... + 774631.

It is an arithmetic number, because the mean of its divisors is an integer number (202042971).

Almost surely, 2^806623141 is an apocalyptic number.

It is an amenable number.

806623141 is a deficient number, since it is larger than the sum of its proper divisors (1548743).

806623141 is a wasteful number, since it uses less digits than its factorization.

806623141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548742.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 806623141 is about 28401.1116155689. Note that the first 3 decimals coincide. The cubic root of 806623141 is about 930.8725541170.

Adding to 806623141 its reverse (141326608), we get a palindrome (947949749).

The spelling of 806623141 in words is "eight hundred six million, six hundred twenty-three thousand, one hundred forty-one".