99733321 has 2 divisors, whose sum is σ = 99733322. Its totient is φ = 99733320.

The previous prime is 99733307. The next prime is 99733327. The reversal of 99733321 is 12333799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93799225 + 5934096 = 9685^2 + 2436^2 .

It is an emirp because it is prime and its reverse (12333799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99733321 - 2²¹ = 97636169 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (99733327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49866660 + 49866661.

It is an arithmetic number, because the mean of its divisors is an integer number (49866661).

Almost surely, 2^99733321 is an apocalyptic number.

It is an amenable number.

99733321 is a deficient number, since it is larger than the sum of its proper divisors (1).

99733321 is an equidigital number, since it uses as much as digits as its factorization.

99733321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 37.

The square root of 99733321 is about 9986.6571484156. The cubic root of 99733321 is about 463.7459112840.

The spelling of 99733321 in words is "ninety-nine million, seven hundred thirty-three thousand, three hundred twenty-one".