99547949 has 2 divisors, whose sum is σ = 99547950. Its totient is φ = 99547948.

The previous prime is 99547909. The next prime is 99547957. The reversal of 99547949 is 94974599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88021924 + 11526025 = 9382^2 + 3395^2 .

It is an emirp because it is prime and its reverse (94974599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99547949 - 2¹² = 99543853 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99547894 and 99547903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99547909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49773974 + 49773975.

It is an arithmetic number, because the mean of its divisors is an integer number (49773975).

Almost surely, 2^99547949 is an apocalyptic number.

It is an amenable number.

99547949 is a deficient number, since it is larger than the sum of its proper divisors (1).

99547949 is an equidigital number, since it uses as much as digits as its factorization.

99547949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 56.

The square root of 99547949 is about 9977.3718483376. The cubic root of 99547949 is about 463.4584151828.

The spelling of 99547949 in words is "ninety-nine million, five hundred forty-seven thousand, nine hundred forty-nine".