6617972 has 12 divisors (see below), whose sum is σ = 11611236. Its totient is φ = 3300480.

The previous prime is 6617969. The next prime is 6617983. The reversal of 6617972 is 2797166.

It can be written as a sum of positive squares in 2 ways, for example, as 3363556 + 3254416 = 1834^2 + 1804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179 + ... + 3642.

It is an arithmetic number, because the mean of its divisors is an integer number (967603).

Almost surely, 2^6617972 is an apocalyptic number.

It is an amenable number.

6617972 is a deficient number, since it is larger than the sum of its proper divisors (4993264).

6617972 is a wasteful number, since it uses less digits than its factorization.

6617972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258 (or 4256 counting only the distinct ones).

The product of its digits is 31752, while the sum is 38.

The square root of 6617972 is about 2572.5419335747. The cubic root of 6617972 is about 187.7478511908.

The spelling of 6617972 in words is "six million, six hundred seventeen thousand, nine hundred seventy-two".