8534921 has 2 divisors, whose sum is σ = 8534922. Its totient is φ = 8534920.

The previous prime is 8534917. The next prime is 8534927. The reversal of 8534921 is 1294358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8094025 + 440896 = 2845^2 + 664^2 .

It is a cyclic number.

It is not a de Polignac number, because 8534921 - 2² = 8534917 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8534927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4267460 + 4267461.

It is an arithmetic number, because the mean of its divisors is an integer number (4267461).

Almost surely, 2^8534921 is an apocalyptic number.

It is an amenable number.

8534921 is a deficient number, since it is larger than the sum of its proper divisors (1).

8534921 is an equidigital number, since it uses as much as digits as its factorization.

8534921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 8534921 is about 2921.4587109867. The cubic root of 8534921 is about 204.3618545601.

The spelling of 8534921 in words is "eight million, five hundred thirty-four thousand, nine hundred twenty-one".