8536921 has 2 divisors, whose sum is σ = 8536922. Its totient is φ = 8536920.

The previous prime is 8536903. The next prime is 8536961. The reversal of 8536921 is 1296358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5456896 + 3080025 = 2336^2 + 1755^2 .

It is a cyclic number.

It is not a de Polignac number, because 8536921 - 2⁷ = 8536793 is a prime.

8536921 is a lucky number.

It is equal to p₅₇₃₄₆₉ and since 8536921 and 573469 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8536961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4268460 + 4268461.

It is an arithmetic number, because the mean of its divisors is an integer number (4268461).

Almost surely, 2^8536921 is an apocalyptic number.

It is an amenable number.

8536921 is a deficient number, since it is larger than the sum of its proper divisors (1).

8536921 is an equidigital number, since it uses as much as digits as its factorization.

8536921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 8536921 is about 2921.8009856936. The cubic root of 8536921 is about 204.3778161133.

The spelling of 8536921 in words is "eight million, five hundred thirty-six thousand, nine hundred twenty-one".