99517237 has 2 divisors, whose sum is σ = 99517238. Its totient is φ = 99517236.

The previous prime is 99517213. The next prime is 99517273. The reversal of 99517237 is 73271599.

Together with next prime (99517273) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95082001 + 4435236 = 9751^2 + 2106^2 .

It is a cyclic number.

It is not a de Polignac number, because 99517237 - 2¹¹ = 99515189 is a prime.

It is a super-2 number, since 2×99517237² = 19807360920228338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99517193 and 99517202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99517207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49758618 + 49758619.

It is an arithmetic number, because the mean of its divisors is an integer number (49758619).

Almost surely, 2^99517237 is an apocalyptic number.

It is an amenable number.

99517237 is a deficient number, since it is larger than the sum of its proper divisors (1).

99517237 is an equidigital number, since it uses as much as digits as its factorization.

99517237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 43.

The square root of 99517237 is about 9975.8326469523. The cubic root of 99517237 is about 463.4107490447.

The spelling of 99517237 in words is "ninety-nine million, five hundred seventeen thousand, two hundred thirty-seven".