8969993 has 2 divisors, whose sum is σ = 8969994. Its totient is φ = 8969992.

The previous prime is 8969971. The next prime is 8970007. The reversal of 8969993 is 3999698.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4631104 + 4338889 = 2152^2 + 2083^2 .

It is a cyclic number.

It is not a de Polignac number, because 8969993 - 2¹² = 8965897 is a prime.

It is not a weakly prime, because it can be changed into another prime (8969923) 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, 4484996 + 4484997.

It is an arithmetic number, because the mean of its divisors is an integer number (4484997).

Almost surely, 2^8969993 is an apocalyptic number.

It is an amenable number.

8969993 is a deficient number, since it is larger than the sum of its proper divisors (1).

8969993 is an equidigital number, since it uses as much as digits as its factorization.

8969993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 944784, while the sum is 53.

The square root of 8969993 is about 2994.9946577582. The cubic root of 8969993 is about 207.7769505550.

The spelling of 8969993 in words is "eight million, nine hundred sixty-nine thousand, nine hundred ninety-three".