8870121 has 32 divisors (see below), whose sum is σ = 14555520. Its totient is φ = 5303232.

The previous prime is 8870053. The next prime is 8870129. The reversal of 8870121 is 1210788.

8870121 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 not a de Polignac number, because 8870121 - 2¹³ = 8861929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8870129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12646 + ... + 13328.

It is an arithmetic number, because the mean of its divisors is an integer number (454860).

Almost surely, 2^8870121 is an apocalyptic number.

It is an amenable number.

8870121 is a deficient number, since it is larger than the sum of its proper divisors (5685399).

8870121 is a wasteful number, since it uses less digits than its factorization.

8870121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 8870121 is about 2978.2748362097. The cubic root of 8870121 is about 207.0029405169.

The spelling of 8870121 in words is "eight million, eight hundred seventy thousand, one hundred twenty-one".