99996667 has 2 divisors, whose sum is σ = 99996668. Its totient is φ = 99996666.

The previous prime is 99996653. The next prime is 99996671. The reversal of 99996667 is 76669999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99996667 - 2¹⁹ = 99472379 is a prime.

It is a super-2 number, since 2×99996667² = 19998666822217778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99996647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49998333 + 49998334.

It is an arithmetic number, because the mean of its divisors is an integer number (49998334).

Almost surely, 2^99996667 is an apocalyptic number.

99996667 is a deficient number, since it is larger than the sum of its proper divisors (1).

99996667 is an equidigital number, since it uses as much as digits as its factorization.

99996667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9920232, while the sum is 61.

The square root of 99996667 is about 9999.8333486114. The cubic root of 99996667 is about 464.1537264988.

The spelling of 99996667 in words is "ninety-nine million, nine hundred ninety-six thousand, six hundred sixty-seven".