299693987 has 2 divisors, whose sum is σ = 299693988. Its totient is φ = 299693986.

The previous prime is 299693971. The next prime is 299694041. The reversal of 299693987 is 789396992.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 299693987 - 2⁴ = 299693971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (292693987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149846993 + 149846994.

It is an arithmetic number, because the mean of its divisors is an integer number (149846994).

Almost surely, 2^299693987 is an apocalyptic number.

299693987 is a deficient number, since it is larger than the sum of its proper divisors (1).

299693987 is an equidigital number, since it uses as much as digits as its factorization.

299693987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13226976, while the sum is 62.

The square root of 299693987 is about 17311.6719874194. The cubic root of 299693987 is about 669.2052557726.

The spelling of 299693987 in words is "two hundred ninety-nine million, six hundred ninety-three thousand, nine hundred eighty-seven".