99000647 has 2 divisors, whose sum is σ = 99000648. Its totient is φ = 99000646.

The previous prime is 99000619. The next prime is 99000653. The reversal of 99000647 is 74600099.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99000647 - 2²² = 94806343 is a prime.

It is a super-2 number, since 2×99000647² = 19602256212837218, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99000047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49500323 + 49500324.

It is an arithmetic number, because the mean of its divisors is an integer number (49500324).

Almost surely, 2^99000647 is an apocalyptic number.

99000647 is a deficient number, since it is larger than the sum of its proper divisors (1).

99000647 is an equidigital number, since it uses as much as digits as its factorization.

99000647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 99000647 is about 9949.9068839864. The cubic root of 99000647 is about 462.6075086818.

The spelling of 99000647 in words is "ninety-nine million, six hundred forty-seven", and thus it is an aban number.