6820617 has 16 divisors (see below), whose sum is σ = 9563840. Its totient is φ = 4318272.

The previous prime is 6820607. The next prime is 6820633. The reversal of 6820617 is 7160286.

It is a happy number.

It is not a de Polignac number, because 6820617 - 2¹⁵ = 6787849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6820607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4059 + ... + 5487.

It is an arithmetic number, because the mean of its divisors is an integer number (597740).

Almost surely, 2^6820617 is an apocalyptic number.

It is an amenable number.

6820617 is a deficient number, since it is larger than the sum of its proper divisors (2743223).

6820617 is a wasteful number, since it uses less digits than its factorization.

6820617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 6820617 is about 2611.6310995238. The cubic root of 6820617 is about 189.6449231710.

The spelling of 6820617 in words is "six million, eight hundred twenty thousand, six hundred seventeen".