99773647 has 2 divisors, whose sum is σ = 99773648. Its totient is φ = 99773646.

The previous prime is 99773627. The next prime is 99773651. The reversal of 99773647 is 74637799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99773647 - 2²³ = 91385039 is a prime.

It is a super-3 number, since 3×99773647³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99773594 and 99773603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99773627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49886823 + 49886824.

It is an arithmetic number, because the mean of its divisors is an integer number (49886824).

Almost surely, 2^99773647 is an apocalyptic number.

99773647 is a deficient number, since it is larger than the sum of its proper divisors (1).

99773647 is an equidigital number, since it uses as much as digits as its factorization.

99773647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2000376, while the sum is 52.

The square root of 99773647 is about 9988.6759382813. The cubic root of 99773647 is about 463.8084062706.

The spelling of 99773647 in words is "ninety-nine million, seven hundred seventy-three thousand, six hundred forty-seven".