7884121 has 16 divisors (see below), whose sum is σ = 9331200. Its totient is φ = 6522048.

The previous prime is 7884119. The next prime is 7884127. The reversal of 7884121 is 1214887.

It is a cyclic number.

It is not a de Polignac number, because 7884121 - 2¹ = 7884119 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (7884127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29175 + ... + 29443.

It is an arithmetic number, because the mean of its divisors is an integer number (583200).

Almost surely, 2^7884121 is an apocalyptic number.

It is an amenable number.

7884121 is a deficient number, since it is larger than the sum of its proper divisors (1447079).

7884121 is a wasteful number, since it uses less digits than its factorization.

7884121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

The product of its digits is 3584, while the sum is 31.

The square root of 7884121 is about 2807.8676963133. The cubic root of 7884121 is about 199.0296413007.

The spelling of 7884121 in words is "seven million, eight hundred eighty-four thousand, one hundred twenty-one".