6890429 has 24 divisors (see below), whose sum is σ = 8953560. Its totient is φ = 5249664.

The previous prime is 6890413. The next prime is 6890437. The reversal of 6890429 is 9240986.

It can be written as a sum of positive squares in 4 ways, for example, as 362404 + 6528025 = 602^2 + 2555^2 .

It is not a de Polignac number, because 6890429 - 2⁴ = 6890413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6890392 and 6890401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6895429) 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 23 ways as a sum of consecutive naturals, for example, 18287 + ... + 18659.

It is an arithmetic number, because the mean of its divisors is an integer number (373065).

Almost surely, 2^6890429 is an apocalyptic number.

It is an amenable number.

6890429 is a deficient number, since it is larger than the sum of its proper divisors (2063131).

6890429 is a wasteful number, since it uses less digits than its factorization.

6890429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 6890429 is about 2624.9626664012. The cubic root of 6890429 is about 190.2897610124.

The spelling of 6890429 in words is "six million, eight hundred ninety thousand, four hundred twenty-nine".