379279993 has 2 divisors, whose sum is σ = 379279994. Its totient is φ = 379279992.

The previous prime is 379279981. The next prime is 379280017. The reversal of 379279993 is 399972973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250525584 + 128754409 = 15828^2 + 11347^2 .

It is an emirp because it is prime and its reverse (399972973) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-379279993 is a prime.

It is not a weakly prime, because it can be changed into another prime (379279903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189639996 + 189639997.

It is an arithmetic number, because the mean of its divisors is an integer number (189639997).

Almost surely, 2^379279993 is an apocalyptic number.

It is an amenable number.

379279993 is a deficient number, since it is larger than the sum of its proper divisors (1).

379279993 is an equidigital number, since it uses as much as digits as its factorization.

379279993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5786802, while the sum is 58.

The square root of 379279993 is about 19475.1121434512. The cubic root of 379279993 is about 723.8578881506.

The spelling of 379279993 in words is "three hundred seventy-nine million, two hundred seventy-nine thousand, nine hundred ninety-three".