99701947 has 2 divisors, whose sum is σ = 99701948. Its totient is φ = 99701946.

The previous prime is 99701929. The next prime is 99701977. The reversal of 99701947 is 74910799.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99701947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99701897 and 99701906.

It is not a weakly prime, because it can be changed into another prime (99701977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49850973 + 49850974.

It is an arithmetic number, because the mean of its divisors is an integer number (49850974).

Almost surely, 2^99701947 is an apocalyptic number.

99701947 is a deficient number, since it is larger than the sum of its proper divisors (1).

99701947 is an equidigital number, since it uses as much as digits as its factorization.

99701947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 99701947 is about 9985.0862289717. The cubic root of 99701947 is about 463.6972779553.

The spelling of 99701947 in words is "ninety-nine million, seven hundred one thousand, nine hundred forty-seven".