99036989 has 2 divisors, whose sum is σ = 99036990. Its totient is φ = 99036988.

The previous prime is 99036967. The next prime is 99036991. The reversal of 99036989 is 98963099.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50623225 + 48413764 = 7115^2 + 6958^2 .

It is a cyclic number.

It is not a de Polignac number, because 99036989 - 2¹² = 99032893 is a prime.

It is a super-2 number, since 2×99036989² = 19616650380372242, which contains 22 as substring.

Together with 99036991, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99036989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99036089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49518494 + 49518495.

It is an arithmetic number, because the mean of its divisors is an integer number (49518495).

Almost surely, 2^99036989 is an apocalyptic number.

It is an amenable number.

99036989 is a deficient number, since it is larger than the sum of its proper divisors (1).

99036989 is an equidigital number, since it uses as much as digits as its factorization.

99036989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 944784, while the sum is 53.

The square root of 99036989 is about 9951.7329646650. The cubic root of 99036989 is about 462.6641077237.

The spelling of 99036989 in words is "ninety-nine million, thirty-six thousand, nine hundred eighty-nine".