7872118 has 16 divisors (see below), whose sum is σ = 12971520. Its totient is φ = 3566376.

The previous prime is 7872107. The next prime is 7872119. The reversal of 7872118 is 8112787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7872119) 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 in 7 ways as a sum of consecutive naturals, for example, 3630 + ... + 5377.

It is an arithmetic number, because the mean of its divisors is an integer number (810720).

Almost surely, 2^7872118 is an apocalyptic number.

7872118 is a deficient number, since it is larger than the sum of its proper divisors (5099402).

7872118 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 7872118 = (1828177)₁₃.

7872118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051.

The product of its digits is 6272, while the sum is 34.

The square root of 7872118 is about 2805.7294951581. The cubic root of 7872118 is about 198.9285872899.

The spelling of 7872118 in words is "seven million, eight hundred seventy-two thousand, one hundred eighteen".