99660767 has 2 divisors, whose sum is σ = 99660768. Its totient is φ = 99660766.

The previous prime is 99660697. The next prime is 99660793. The reversal of 99660767 is 76706699.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (76706699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99660767 - 2¹⁴ = 99644383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99660367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49830383 + 49830384.

It is an arithmetic number, because the mean of its divisors is an integer number (49830384).

Almost surely, 2^99660767 is an apocalyptic number.

99660767 is a deficient number, since it is larger than the sum of its proper divisors (1).

99660767 is an equidigital number, since it uses as much as digits as its factorization.

99660767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 99660767 is about 9983.0239406705. The cubic root of 99660767 is about 463.6334287058.

The spelling of 99660767 in words is "ninety-nine million, six hundred sixty thousand, seven hundred sixty-seven".