99906347 has 2 divisors, whose sum is σ = 99906348. Its totient is φ = 99906346.

The previous prime is 99906337. The next prime is 99906361. The reversal of 99906347 is 74360999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99906347 - 2⁸ = 99906091 is a prime.

It is not a weakly prime, because it can be changed into another prime (99906307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49953173 + 49953174.

It is an arithmetic number, because the mean of its divisors is an integer number (49953174).

Almost surely, 2^99906347 is an apocalyptic number.

99906347 is a deficient number, since it is larger than the sum of its proper divisors (1).

99906347 is an equidigital number, since it uses as much as digits as its factorization.

99906347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 99906347 is about 9995.3162531258. The cubic root of 99906347 is about 464.0139385305.

The spelling of 99906347 in words is "ninety-nine million, nine hundred six thousand, three hundred forty-seven".