7828172 has 12 divisors (see below), whose sum is σ = 14944776. Its totient is φ = 3558240.

The previous prime is 7828157. The next prime is 7828187. The reversal of 7828172 is 2718287.

It is an interprime number because it is at equal distance from previous prime (7828157) and next prime (7828187).

It is a super-3 number, since 3×7828172³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 88913 + ... + 89000.

It is an arithmetic number, because the mean of its divisors is an integer number (1245398).

Almost surely, 2^7828172 is an apocalyptic number.

It is an amenable number.

7828172 is a deficient number, since it is larger than the sum of its proper divisors (7116604).

7828172 is a wasteful number, since it uses less digits than its factorization.

7828172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177928 (or 177926 counting only the distinct ones).

The product of its digits is 12544, while the sum is 35.

The square root of 7828172 is about 2797.8870599079. The cubic root of 7828172 is about 198.5577242040.

It can be divided in two parts, 7828 and 172, that added together give a cube (8000 = 20³).

The spelling of 7828172 in words is "seven million, eight hundred twenty-eight thousand, one hundred seventy-two".