99530917 has 2 divisors, whose sum is σ = 99530918. Its totient is φ = 99530916.

The previous prime is 99530909. The next prime is 99530927. The reversal of 99530917 is 71903599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58583716 + 40947201 = 7654^2 + 6399^2 .

It is an emirp because it is prime and its reverse (71903599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99530917 - 2³ = 99530909 is a prime.

It is a super-3 number, since 3×99530917³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99530927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49765458 + 49765459.

It is an arithmetic number, because the mean of its divisors is an integer number (49765459).

Almost surely, 2^99530917 is an apocalyptic number.

It is an amenable number.

99530917 is a deficient number, since it is larger than the sum of its proper divisors (1).

99530917 is an equidigital number, since it uses as much as digits as its factorization.

99530917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 99530917 is about 9976.5182804423. The cubic root of 99530917 is about 463.4319821120.

The spelling of 99530917 in words is "ninety-nine million, five hundred thirty thousand, nine hundred seventeen".