299693393 has 2 divisors, whose sum is σ = 299693394. Its totient is φ = 299693392.

The previous prime is 299693363. The next prime is 299693417. The reversal of 299693393 is 393396992.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203005504 + 96687889 = 14248^2 + 9833^2 .

It is a cyclic number.

It is not a de Polignac number, because 299693393 - 2¹⁶ = 299627857 is a prime.

It is a super-2 number, since 2×299693393² = 179632259615704898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (299693363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149846696 + 149846697.

It is an arithmetic number, because the mean of its divisors is an integer number (149846697).

Almost surely, 2^299693393 is an apocalyptic number.

It is an amenable number.

299693393 is a deficient number, since it is larger than the sum of its proper divisors (1).

299693393 is an equidigital number, since it uses as much as digits as its factorization.

299693393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2125764, while the sum is 53.

The square root of 299693393 is about 17311.6548313557. The cubic root of 299693393 is about 669.2048136459.

The spelling of 299693393 in words is "two hundred ninety-nine million, six hundred ninety-three thousand, three hundred ninety-three".