6429121 has 16 divisors (see below), whose sum is σ = 7077888. Its totient is φ = 5821200.

The previous prime is 6429109. The next prime is 6429139. The reversal of 6429121 is 1219246.

6429121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6429121 - 2⁵ = 6429089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6429151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50560 + ... + 50686.

It is an arithmetic number, because the mean of its divisors is an integer number (442368).

Almost surely, 2^6429121 is an apocalyptic number.

It is an amenable number.

6429121 is a deficient number, since it is larger than the sum of its proper divisors (648767).

6429121 is a wasteful number, since it uses less digits than its factorization.

6429121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252.

The product of its digits is 864, while the sum is 25.

The square root of 6429121 is about 2535.5711388167. The cubic root of 6429121 is about 185.9447267064.

The spelling of 6429121 in words is "six million, four hundred twenty-nine thousand, one hundred twenty-one".