6820471 has 8 divisors (see below), whose sum is σ = 7923104. Its totient is φ = 5749920.

The previous prime is 6820441. The next prime is 6820483. The reversal of 6820471 is 1740286.

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

It is a cyclic number.

It is not a de Polignac number, because 6820471 - 2¹⁷ = 6689399 is a prime.

It is a super-3 number, since 3×6820471³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7560 + ... + 8413.

It is an arithmetic number, because the mean of its divisors is an integer number (990388).

Almost surely, 2^6820471 is an apocalyptic number.

6820471 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

6820471 is a deficient number, since it is larger than the sum of its proper divisors (1102633).

6820471 is a wasteful number, since it uses less digits than its factorization.

6820471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16041.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 6820471 is about 2611.6031474939. The cubic root of 6820471 is about 189.6435700013.

It can be divided in two parts, 68204 and 71, that multiplied together give a palindrome (4842484).

The spelling of 6820471 in words is "six million, eight hundred twenty thousand, four hundred seventy-one".