8777121 has 4 divisors (see below), whose sum is σ = 11702832. Its totient is φ = 5851412.

The previous prime is 8777113. The next prime is 8777141. The reversal of 8777121 is 1217778.

8777121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 8777121 - 2³ = 8777113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8777101) 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, 1462851 + ... + 1462856.

It is an arithmetic number, because the mean of its divisors is an integer number (2925708).

Almost surely, 2^8777121 is an apocalyptic number.

It is an amenable number.

8777121 is a deficient number, since it is larger than the sum of its proper divisors (2925711).

8777121 is a wasteful number, since it uses less digits than its factorization.

8777121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925710.

The product of its digits is 5488, while the sum is 33.

The square root of 8777121 is about 2962.6206304554. The cubic root of 8777121 is about 206.2769470760.

The spelling of 8777121 in words is "eight million, seven hundred seventy-seven thousand, one hundred twenty-one".