6820953 has 4 divisors (see below), whose sum is σ = 9094608. Its totient is φ = 4547300.

The previous prime is 6820951. The next prime is 6820967. The reversal of 6820953 is 3590286.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6820953 - 2¹ = 6820951 is a prime.

It is a D-number.

6820953 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6820951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136823 + ... + 1136828.

It is an arithmetic number, because the mean of its divisors is an integer number (2273652).

Almost surely, 2^6820953 is an apocalyptic number.

It is an amenable number.

6820953 is a deficient number, since it is larger than the sum of its proper divisors (2273655).

6820953 is a wasteful number, since it uses less digits than its factorization.

6820953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273654.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 6820953 is about 2611.6954263466. The cubic root of 6820953 is about 189.6480372416.

The spelling of 6820953 in words is "six million, eight hundred twenty thousand, nine hundred fifty-three".