6929121 has 4 divisors (see below), whose sum is σ = 9238832. Its totient is φ = 4619412.

The previous prime is 6929113. The next prime is 6929147. The reversal of 6929121 is 1219296.

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 not a de Polignac number, because 6929121 - 2³ = 6929113 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6929161) 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 3 ways as a sum of consecutive naturals, for example, 1154851 + ... + 1154856.

It is an arithmetic number, because the mean of its divisors is an integer number (2309708).

Almost surely, 2^6929121 is an apocalyptic number.

It is an amenable number.

6929121 is a deficient number, since it is larger than the sum of its proper divisors (2309711).

6929121 is a wasteful number, since it uses less digits than its factorization.

6929121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309710.

The product of its digits is 1944, while the sum is 30.

The square root of 6929121 is about 2632.3223586787. The cubic root of 6929121 is about 190.6452760301.

The spelling of 6929121 in words is "six million, nine hundred twenty-nine thousand, one hundred twenty-one".