8758121 has 4 divisors (see below), whose sum is σ = 8944512. Its totient is φ = 8571732.

The previous prime is 8758117. The next prime is 8758129. The reversal of 8758121 is 1218578.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1218578 = 2 ⋅609289.

It is a cyclic number.

It is not a de Polignac number, because 8758121 - 2² = 8758117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8758129) 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 3 ways as a sum of consecutive naturals, for example, 93125 + ... + 93218.

It is an arithmetic number, because the mean of its divisors is an integer number (2236128).

Almost surely, 2^8758121 is an apocalyptic number.

It is an amenable number.

8758121 is a deficient number, since it is larger than the sum of its proper divisors (186391).

8758121 is a wasteful number, since it uses less digits than its factorization.

8758121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186390.

The product of its digits is 4480, while the sum is 32.

The square root of 8758121 is about 2959.4122727325. The cubic root of 8758121 is about 206.1279956741.

The spelling of 8758121 in words is "eight million, seven hundred fifty-eight thousand, one hundred twenty-one".