93893993 has 2 divisors, whose sum is σ = 93893994. Its totient is φ = 93893992.

The previous prime is 93893951. The next prime is 93894011. The reversal of 93893993 is 39939839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68773849 + 25120144 = 8293^2 + 5012^2 .

It is a cyclic number.

It is not a de Polignac number, because 93893993 - 2²² = 89699689 is a prime.

It is a super-3 number, since 3×93893993³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (93893923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46946996 + 46946997.

It is an arithmetic number, because the mean of its divisors is an integer number (46946997).

Almost surely, 2^93893993 is an apocalyptic number.

It is an amenable number.

93893993 is a deficient number, since it is larger than the sum of its proper divisors (1).

93893993 is an equidigital number, since it uses as much as digits as its factorization.

93893993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1417176, while the sum is 53.

The square root of 93893993 is about 9689.8912790598. The cubic root of 93893993 is about 454.5126093637.

The spelling of 93893993 in words is "ninety-three million, eight hundred ninety-three thousand, nine hundred ninety-three".