99489701 has 2 divisors, whose sum is σ = 99489702. Its totient is φ = 99489700.

The previous prime is 99489671. The next prime is 99489703. The reversal of 99489701 is 10798499.

99489701 is nontrivially palindromic in base 3.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99480676 + 9025 = 9974^2 + 95^2 .

It is an emirp because it is prime and its reverse (10798499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99489701 - 2¹⁰ = 99488677 is a prime.

Together with 99489703, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99489703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49744850 + 49744851.

It is an arithmetic number, because the mean of its divisors is an integer number (49744851).

Almost surely, 2^99489701 is an apocalyptic number.

It is an amenable number.

99489701 is a deficient number, since it is larger than the sum of its proper divisors (1).

99489701 is an equidigital number, since it uses as much as digits as its factorization.

99489701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 99489701 is about 9974.4524160477. The cubic root of 99489701 is about 463.3680038350.

The spelling of 99489701 in words is "ninety-nine million, four hundred eighty-nine thousand, seven hundred one".