8162972 has 6 divisors (see below), whose sum is σ = 14285208. Its totient is φ = 4081484.

The previous prime is 8162971. The next prime is 8162981. The reversal of 8162972 is 2792618.

It is a happy number.

It is a super-2 number, since 2×8162972² = 133268223745568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8162971) by changing a digit.

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 as a sum of consecutive naturals, namely, 1020368 + ... + 1020375.

It is an arithmetic number, because the mean of its divisors is an integer number (2380868).

Almost surely, 2^8162972 is an apocalyptic number.

It is an amenable number.

8162972 is a deficient number, since it is larger than the sum of its proper divisors (6122236).

8162972 is a wasteful number, since it uses less digits than its factorization.

8162972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040747 (or 2040745 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 8162972 is about 2857.0915281104. The cubic root of 8162972 is about 201.3489807973.

The spelling of 8162972 in words is "eight million, one hundred sixty-two thousand, nine hundred seventy-two".