99425647 has 2 divisors, whose sum is σ = 99425648. Its totient is φ = 99425646.

The previous prime is 99425611. The next prime is 99425681. The reversal of 99425647 is 74652499.

99425647 is nontrivially palindromic in base 6.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99425647 - 2⁷ = 99425519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99425597 and 99425606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99425047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49712823 + 49712824.

It is an arithmetic number, because the mean of its divisors is an integer number (49712824).

Almost surely, 2^99425647 is an apocalyptic number.

99425647 is a deficient number, since it is larger than the sum of its proper divisors (1).

99425647 is an equidigital number, since it uses as much as digits as its factorization.

99425647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 99425647 is about 9971.2409959844. The cubic root of 99425647 is about 463.2685397839.

The spelling of 99425647 in words is "ninety-nine million, four hundred twenty-five thousand, six hundred forty-seven".