7161872 has 10 divisors (see below), whose sum is σ = 13876158. Its totient is φ = 3580928.

The previous prime is 7161863. The next prime is 7161877. The reversal of 7161872 is 2781617.

It can be written as a sum of positive squares in only one way, i.e., 3936256 + 3225616 = 1984^2 + 1796^2 .

It is not an unprimeable number, because it can be changed into a prime (7161877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223793 + ... + 223824.

Almost surely, 2^7161872 is an apocalyptic number.

It is an amenable number.

7161872 is a deficient number, since it is larger than the sum of its proper divisors (6714286).

7161872 is a wasteful number, since it uses less digits than its factorization.

7161872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447625 (or 447619 counting only the distinct ones).

The product of its digits is 4704, while the sum is 32.

The square root of 7161872 is about 2676.1674088143. The cubic root of 7161872 is about 192.7564199636.

The spelling of 7161872 in words is "seven million, one hundred sixty-one thousand, eight hundred seventy-two".