7872236 has 6 divisors (see below), whose sum is σ = 13776420. Its totient is φ = 3936116.

The previous prime is 7872223. The next prime is 7872239. The reversal of 7872236 is 6322787.

It is a junction number, because it is equal to n+sod(n) for n = 7872196 and 7872205.

It is not an unprimeable number, because it can be changed into a prime (7872239) 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, 984026 + ... + 984033.

It is an arithmetic number, because the mean of its divisors is an integer number (2296070).

Almost surely, 2^7872236 is an apocalyptic number.

It is an amenable number.

7872236 is a deficient number, since it is larger than the sum of its proper divisors (5904184).

7872236 is a wasteful number, since it uses less digits than its factorization.

7872236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968063 (or 1968061 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 7872236 is about 2805.7505234785. The cubic root of 7872236 is about 198.9295812391.

The spelling of 7872236 in words is "seven million, eight hundred seventy-two thousand, two hundred thirty-six".