6920641 has 16 divisors (see below), whose sum is σ = 8668800. Its totient is φ = 5378688.

The previous prime is 6920629. The next prime is 6920651. The reversal of 6920641 is 1460296.

It is not a de Polignac number, because 6920641 - 2⁹ = 6920129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6920651) 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 15 ways as a sum of consecutive naturals, for example, 4725 + ... + 6013.

It is an arithmetic number, because the mean of its divisors is an integer number (541800).

Almost surely, 2^6920641 is an apocalyptic number.

It is an amenable number.

6920641 is a deficient number, since it is larger than the sum of its proper divisors (1748159).

6920641 is a wasteful number, since it uses less digits than its factorization.

6920641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 6920641 is about 2630.7111205908. The cubic root of 6920641 is about 190.5674724196.

The spelling of 6920641 in words is "six million, nine hundred twenty thousand, six hundred forty-one".