6939901 has 2 divisors, whose sum is σ = 6939902. Its totient is φ = 6939900.

The previous prime is 6939887. The next prime is 6939923. The reversal of 6939901 is 1099396.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3880900 + 3059001 = 1970^2 + 1749^2 .

It is a cyclic number.

It is not a de Polignac number, because 6939901 - 2²¹ = 4842749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6939941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3469950 + 3469951.

It is an arithmetic number, because the mean of its divisors is an integer number (3469951).

Almost surely, 2^6939901 is an apocalyptic number.

It is an amenable number.

6939901 is a deficient number, since it is larger than the sum of its proper divisors (1).

6939901 is an equidigital number, since it uses as much as digits as its factorization.

6939901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 6939901 is about 2634.3691844538. The cubic root of 6939901 is about 190.7440904504.

The spelling of 6939901 in words is "six million, nine hundred thirty-nine thousand, nine hundred one".