8862121 has 4 divisors (see below), whose sum is σ = 8879044. Its totient is φ = 8845200.

The previous prime is 8862097. The next prime is 8862137. The reversal of 8862121 is 1212688.

8862121 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1022121 + 7840000 = 1011^2 + 2800^2 .

It is a cyclic number.

It is not a de Polignac number, because 8862121 - 2⁹ = 8861609 is a prime.

It is a Duffinian number.

8862121 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8862121.

It is not an unprimeable number, because it can be changed into a prime (8862181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7650 + ... + 8731.

It is an arithmetic number, because the mean of its divisors is an integer number (2219761).

Almost surely, 2^8862121 is an apocalyptic number.

It is an amenable number.

8862121 is a deficient number, since it is larger than the sum of its proper divisors (16923).

8862121 is a wasteful number, since it uses less digits than its factorization.

8862121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16922.

The product of its digits is 1536, while the sum is 28.

The square root of 8862121 is about 2976.9314738502. The cubic root of 8862121 is about 206.9406895198.

The spelling of 8862121 in words is "eight million, eight hundred sixty-two thousand, one hundred twenty-one".