7081872 has 60 divisors (see below), whose sum is σ = 21288816. Its totient is φ = 2022720.

The previous prime is 7081871. The next prime is 7081891. The reversal of 7081872 is 2781807.

It is a super-2 number, since 2×7081872² = 100305822048768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7081871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 847 + ... + 3857.

Almost surely, 2^7081872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7081872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10644408).

7081872 is an abundant number, since it is smaller than the sum of its proper divisors (14206944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7081872 is a wasteful number, since it uses less digits than its factorization.

7081872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036 (or 3023 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 7081872 is about 2661.1786862216. The cubic root of 7081872 is about 192.0360175486.

Subtracting from 7081872 its product of nonzero digits (6272), we obtain a square (7075600 = 2660²).

The spelling of 7081872 in words is "seven million, eighty-one thousand, eight hundred seventy-two".