99553793 has 2 divisors, whose sum is σ = 99553794. Its totient is φ = 99553792.

The previous prime is 99553789. The next prime is 99553799. The reversal of 99553793 is 39735599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98168464 + 1385329 = 9908^2 + 1177^2 .

It is an emirp because it is prime and its reverse (39735599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99553793 - 2² = 99553789 is a prime.

It is not a weakly prime, because it can be changed into another prime (99553799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49776896 + 49776897.

It is an arithmetic number, because the mean of its divisors is an integer number (49776897).

Almost surely, 2^99553793 is an apocalyptic number.

It is an amenable number.

99553793 is a deficient number, since it is larger than the sum of its proper divisors (1).

99553793 is an equidigital number, since it uses as much as digits as its factorization.

99553793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1148175, while the sum is 50.

The square root of 99553793 is about 9977.6647067337. The cubic root of 99553793 is about 463.4674841726.

The spelling of 99553793 in words is "ninety-nine million, five hundred fifty-three thousand, seven hundred ninety-three".