6820470 has 32 divisors (see below), whose sum is σ = 18188640. Its totient is φ = 1818720.

The previous prime is 6820441. The next prime is 6820483. The reversal of 6820470 is 740286.

It is a super-2 number, since 2×6820470² = 93037622041800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12361 + ... + 12900.

It is an arithmetic number, because the mean of its divisors is an integer number (568395).

Almost surely, 2^6820470 is an apocalyptic number.

6820470 is an abundant number, since it is smaller than the sum of its proper divisors (11368170).

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

6820470 is a wasteful number, since it uses less digits than its factorization.

6820470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25277 (or 25271 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 6820470 is about 2611.6029560406. The cubic root of 6820470 is about 189.6435607330.

The spelling of 6820470 in words is "six million, eight hundred twenty thousand, four hundred seventy".