7876121 has 8 divisors (see below), whose sum is σ = 8630688. Its totient is φ = 7128000.

The previous prime is 7876111. The next prime is 7876123. The reversal of 7876121 is 1216787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7876121 - 2¹⁴ = 7859737 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (7876123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166 + ... + 4136.

It is an arithmetic number, because the mean of its divisors is an integer number (1078836).

Almost surely, 2^7876121 is an apocalyptic number.

It is an amenable number.

7876121 is a deficient number, since it is larger than the sum of its proper divisors (754567).

7876121 is a wasteful number, since it uses less digits than its factorization.

7876121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223.

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

The square root of 7876121 is about 2806.4427662078. The cubic root of 7876121 is about 198.9623002075.

It can be divided in two parts, 7876 and 121, that added together give a palindrome (7997).

The spelling of 7876121 in words is "seven million, eight hundred seventy-six thousand, one hundred twenty-one".