806622621 has 8 divisors (see below), whose sum is σ = 1229139264. Its totient is φ = 460927200.

The previous prime is 806622587. The next prime is 806622623. The reversal of 806622621 is 126226608.

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

It is not a de Polignac number, because 806622621 - 2⁷ = 806622493 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806622623) 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, 19205280 + ... + 19205321.

It is an arithmetic number, because the mean of its divisors is an integer number (153642408).

Almost surely, 2^806622621 is an apocalyptic number.

It is an amenable number.

806622621 is a deficient number, since it is larger than the sum of its proper divisors (422516643).

806622621 is a wasteful number, since it uses less digits than its factorization.

806622621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38410611.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 806622621 is about 28401.1024609961. The cubic root of 806622621 is about 930.8723540839.

The spelling of 806622621 in words is "eight hundred six million, six hundred twenty-two thousand, six hundred twenty-one".