89384993 has 2 divisors, whose sum is σ = 89384994. Its totient is φ = 89384992.

The previous prime is 89384983. The next prime is 89385001. The reversal of 89384993 is 39948398.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80694289 + 8690704 = 8983^2 + 2948^2 .

It is a cyclic number.

It is not a de Polignac number, because 89384993 - 2²⁶ = 22276129 is a prime.

It is a super-2 number, since 2×89384993² = 15979353947220098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89384983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44692496 + 44692497.

It is an arithmetic number, because the mean of its divisors is an integer number (44692497).

Almost surely, 2^89384993 is an apocalyptic number.

It is an amenable number.

89384993 is a deficient number, since it is larger than the sum of its proper divisors (1).

89384993 is an equidigital number, since it uses as much as digits as its factorization.

89384993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 53.

The square root of 89384993 is about 9454.3637014873. The cubic root of 89384993 is about 447.1173646279.

It can be divided in two parts, 8938 and 4993, that added together give a palindrome (13931).

The spelling of 89384993 in words is "eighty-nine million, three hundred eighty-four thousand, nine hundred ninety-three".