6917172 has 12 divisors (see below), whose sum is σ = 16140096. Its totient is φ = 2305720.

The previous prime is 6917153. The next prime is 6917173. The reversal of 6917172 is 2717196.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×6917172⁴ (a number of 28 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6917173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288204 + ... + 288227.

It is an arithmetic number, because the mean of its divisors is an integer number (1345008).

Almost surely, 2^6917172 is an apocalyptic number.

It is an amenable number.

6917172 is an abundant number, since it is smaller than the sum of its proper divisors (9222924).

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

6917172 is a wasteful number, since it uses less digits than its factorization.

6917172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576438 (or 576436 counting only the distinct ones).

The product of its digits is 5292, while the sum is 33.

The square root of 6917172 is about 2630.0517105183. The cubic root of 6917172 is about 190.5356261860.

The spelling of 6917172 in words is "six million, nine hundred seventeen thousand, one hundred seventy-two".