99717437 has 2 divisors, whose sum is σ = 99717438. Its totient is φ = 99717436.

The previous prime is 99717419. The next prime is 99717439. The reversal of 99717437 is 73471799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93296281 + 6421156 = 9659^2 + 2534^2 .

It is a cyclic number.

It is not a de Polignac number, because 99717437 - 2⁸ = 99717181 is a prime.

Together with 99717439, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99717391 and 99717400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99717439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49858718 + 49858719.

It is an arithmetic number, because the mean of its divisors is an integer number (49858719).

Almost surely, 2^99717437 is an apocalyptic number.

It is an amenable number.

99717437 is a deficient number, since it is larger than the sum of its proper divisors (1).

99717437 is an equidigital number, since it uses as much as digits as its factorization.

99717437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 333396, while the sum is 47.

The square root of 99717437 is about 9985.8618556437. The cubic root of 99717437 is about 463.7212905218.

The spelling of 99717437 in words is "ninety-nine million, seven hundred seventeen thousand, four hundred thirty-seven".