6992172 has 36 divisors (see below), whose sum is σ = 19282536. Its totient is φ = 2118720.

The previous prime is 6992147. The next prime is 6992177. The reversal of 6992172 is 2712996.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6992177) 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, 8433 + ... + 9224.

It is an arithmetic number, because the mean of its divisors is an integer number (535626).

Almost surely, 2^6992172 is an apocalyptic number.

It is an amenable number.

6992172 is an abundant number, since it is smaller than the sum of its proper divisors (12290364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6992172 is a wasteful number, since it uses less digits than its factorization.

6992172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17678 (or 17673 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 6992172 is about 2644.2715443010. The cubic root of 6992172 is about 191.2217848931.

The spelling of 6992172 in words is "six million, nine hundred ninety-two thousand, one hundred seventy-two".