99471347 has 2 divisors, whose sum is σ = 99471348. Its totient is φ = 99471346.

The previous prime is 99471331. The next prime is 99471391. The reversal of 99471347 is 74317499.

It is a happy number.

It is an a-pointer prime, because the next prime (99471391) can be obtained adding 99471347 to its sum of digits (44).

It is a weak prime.

It is an emirp because it is prime and its reverse (74317499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99471347 - 2⁴ = 99471331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99471298 and 99471307.

It is not a weakly prime, because it can be changed into another prime (99471397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49735673 + 49735674.

It is an arithmetic number, because the mean of its divisors is an integer number (49735674).

Almost surely, 2^99471347 is an apocalyptic number.

99471347 is a deficient number, since it is larger than the sum of its proper divisors (1).

99471347 is an equidigital number, since it uses as much as digits as its factorization.

99471347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 99471347 is about 9973.5323231040. The cubic root of 99471347 is about 463.3395078222.

The spelling of 99471347 in words is "ninety-nine million, four hundred seventy-one thousand, three hundred forty-seven".