6939121 has 8 divisors (see below), whose sum is σ = 7958720. Its totient is φ = 5926608.

The previous prime is 6939103. The next prime is 6939137. The reversal of 6939121 is 1219396.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6939121 - 2⁷ = 6938993 is a prime.

6939121 is a lucky number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (6939151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535 + ... + 3763.

It is an arithmetic number, because the mean of its divisors is an integer number (994840).

Almost surely, 2^6939121 is an apocalyptic number.

It is an amenable number.

6939121 is a deficient number, since it is larger than the sum of its proper divisors (1019599).

6939121 is a wasteful number, since it uses less digits than its factorization.

6939121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543.

The product of its digits is 2916, while the sum is 31.

The square root of 6939121 is about 2634.2211372624. The cubic root of 6939121 is about 190.7369440485.

The spelling of 6939121 in words is "six million, nine hundred thirty-nine thousand, one hundred twenty-one".