7825172 has 12 divisors (see below), whose sum is σ = 13727700. Its totient is φ = 3902976.

The previous prime is 7825133. The next prime is 7825189. The reversal of 7825172 is 2715287.

It can be written as a sum of positive squares in 2 ways, for example, as 6895876 + 929296 = 2626^2 + 964^2 .

It is a super-2 number, since 2×7825172² = 122466633659168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383 + ... + 3974.

It is an arithmetic number, because the mean of its divisors is an integer number (1143975).

Almost surely, 2^7825172 is an apocalyptic number.

It is an amenable number.

7825172 is a deficient number, since it is larger than the sum of its proper divisors (5902528).

7825172 is a wasteful number, since it uses less digits than its factorization.

7825172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810 (or 4808 counting only the distinct ones).

The product of its digits is 7840, while the sum is 32.

The square root of 7825172 is about 2797.3508896812. The cubic root of 7825172 is about 198.5323564561.

It can be divided in two parts, 7825 and 172, that added together give a palindrome (7997).

The spelling of 7825172 in words is "seven million, eight hundred twenty-five thousand, one hundred seventy-two".