99591847 has 2 divisors, whose sum is σ = 99591848. Its totient is φ = 99591846.

The previous prime is 99591803. The next prime is 99591853. The reversal of 99591847 is 74819599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99591847 - 2⁷ = 99591719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99591794 and 99591803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99591857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49795923 + 49795924.

It is an arithmetic number, because the mean of its divisors is an integer number (49795924).

Almost surely, 2^99591847 is an apocalyptic number.

99591847 is a deficient number, since it is larger than the sum of its proper divisors (1).

99591847 is an equidigital number, since it uses as much as digits as its factorization.

99591847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 52.

The square root of 99591847 is about 9979.5714837863. The cubic root of 99591847 is about 463.5265294531.

The spelling of 99591847 in words is "ninety-nine million, five hundred ninety-one thousand, eight hundred forty-seven".