6899172 has 48 divisors (see below), whose sum is σ = 19203072. Its totient is φ = 1884960.

The previous prime is 6899117. The next prime is 6899201. The reversal of 6899172 is 2719986.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 147 + ... + 3717.

It is an arithmetic number, because the mean of its divisors is an integer number (400064).

Almost surely, 2^6899172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6899172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9601536).

6899172 is an abundant number, since it is smaller than the sum of its proper divisors (12303900).

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

6899172 is a wasteful number, since it uses less digits than its factorization.

6899172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608 (or 3606 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 6899172 is about 2626.6274954778. The cubic root of 6899172 is about 190.3702107787.

The spelling of 6899172 in words is "six million, eight hundred ninety-nine thousand, one hundred seventy-two".