99851747 has 2 divisors, whose sum is σ = 99851748. Its totient is φ = 99851746.

The previous prime is 99851729. The next prime is 99851779. The reversal of 99851747 is 74715899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99851747 - 2¹² = 99847651 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99851695 and 99851704.

It is not a weakly prime, because it can be changed into another prime (99851797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49925873 + 49925874.

It is an arithmetic number, because the mean of its divisors is an integer number (49925874).

Almost surely, 2^99851747 is an apocalyptic number.

99851747 is a deficient number, since it is larger than the sum of its proper divisors (1).

99851747 is an equidigital number, since it uses as much as digits as its factorization.

99851747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 50.

The square root of 99851747 is about 9992.5846005926. The cubic root of 99851747 is about 463.9293934255.

The spelling of 99851747 in words is "ninety-nine million, eight hundred fifty-one thousand, seven hundred forty-seven".