8794921 has 2 divisors, whose sum is σ = 8794922. Its totient is φ = 8794920.

The previous prime is 8794913. The next prime is 8794927. The reversal of 8794921 is 1294978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8643600 + 151321 = 2940^2 + 389^2 .

It is a cyclic number.

It is not a de Polignac number, because 8794921 - 2³ = 8794913 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8794927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4397460 + 4397461.

It is an arithmetic number, because the mean of its divisors is an integer number (4397461).

Almost surely, 2^8794921 is an apocalyptic number.

It is an amenable number.

8794921 is a deficient number, since it is larger than the sum of its proper divisors (1).

8794921 is an equidigital number, since it uses as much as digits as its factorization.

8794921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 8794921 is about 2965.6232060058. The cubic root of 8794921 is about 206.4162961238.

The spelling of 8794921 in words is "eight million, seven hundred ninety-four thousand, nine hundred twenty-one".