6692121 has 12 divisors (see below), whose sum is σ = 9690148. Its totient is φ = 4450464.

The previous prime is 6692117. The next prime is 6692131. The reversal of 6692121 is 1212966.

It can be written as a sum of positive squares in 2 ways, for example, as 112896 + 6579225 = 336^2 + 2565^2 .

It is not a de Polignac number, because 6692121 - 2² = 6692117 is a prime.

It is a Duffinian number.

6692121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6692111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4911 + ... + 6123.

Almost surely, 2^6692121 is an apocalyptic number.

It is an amenable number.

6692121 is a deficient number, since it is larger than the sum of its proper divisors (2998027).

6692121 is a wasteful number, since it uses less digits than its factorization.

6692121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832 (or 1829 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 6692121 is about 2586.9134117709. The cubic root of 6692121 is about 188.4464360093.

The spelling of 6692121 in words is "six million, six hundred ninety-two thousand, one hundred twenty-one".