99493847 has 2 divisors, whose sum is σ = 99493848. Its totient is φ = 99493846.

The previous prime is 99493829. The next prime is 99493853. The reversal of 99493847 is 74839499.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99493847 - 2¹² = 99489751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99493897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49746923 + 49746924.

It is an arithmetic number, because the mean of its divisors is an integer number (49746924).

Almost surely, 2^99493847 is an apocalyptic number.

99493847 is a deficient number, since it is larger than the sum of its proper divisors (1).

99493847 is an equidigital number, since it uses as much as digits as its factorization.

99493847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The square root of 99493847 is about 9974.6602448404. The cubic root of 99493847 is about 463.3744403373.

The spelling of 99493847 in words is "ninety-nine million, four hundred ninety-three thousand, eight hundred forty-seven".