806820471 has 12 divisors (see below), whose sum is σ = 1190203872. Its totient is φ = 526435776.

The previous prime is 806820451. The next prime is 806820613. The reversal of 806820471 is 174028608.

806820471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 806820471 - 2⁵ = 806820439 is a prime.

It is a super-3 number, since 3×806820471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806820401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 953266 + ... + 954111.

It is an arithmetic number, because the mean of its divisors is an integer number (99183656).

Almost surely, 2^806820471 is an apocalyptic number.

806820471 is a deficient number, since it is larger than the sum of its proper divisors (383383401).

806820471 is a wasteful number, since it uses less digits than its factorization.

806820471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907430 (or 1907427 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 806820471 is about 28404.5853868702. The cubic root of 806820471 is about 930.9484566026.

The spelling of 806820471 in words is "eight hundred six million, eight hundred twenty thousand, four hundred seventy-one".