8920531 has 2 divisors, whose sum is σ = 8920532. Its totient is φ = 8920530.

The previous prime is 8920517. The next prime is 8920537. The reversal of 8920531 is 1350298.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8920531 - 2⁷ = 8920403 is a prime.

It is a super-2 number, since 2×8920531² = 159151746643922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8920531.

It is not a weakly prime, because it can be changed into another prime (8920537) 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 as a sum of consecutive naturals, namely, 4460265 + 4460266.

It is an arithmetic number, because the mean of its divisors is an integer number (4460266).

Almost surely, 2^8920531 is an apocalyptic number.

8920531 is a deficient number, since it is larger than the sum of its proper divisors (1).

8920531 is an equidigital number, since it uses as much as digits as its factorization.

8920531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 8920531 is about 2986.7257992658. The cubic root of 8920531 is about 207.3943411368.

The spelling of 8920531 in words is "eight million, nine hundred twenty thousand, five hundred thirty-one".