1128393379 has 2 divisors, whose sum is σ = 1128393380. Its totient is φ = 1128393378.

The previous prime is 1128393361. The next prime is 1128393389. The reversal of 1128393379 is 9733938211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1128393379 - 2²³ = 1120004771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1128393389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564196689 + 564196690.

It is an arithmetic number, because the mean of its divisors is an integer number (564196690).

Almost surely, 2^1128393379 is an apocalyptic number.

1128393379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128393379 is an equidigital number, since it uses as much as digits as its factorization.

1128393379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 46.

The square root of 1128393379 is about 33591.5670816352. The cubic root of 1128393379 is about 1041.0865674787.

The spelling of 1128393379 in words is "one billion, one hundred twenty-eight million, three hundred ninety-three thousand, three hundred seventy-nine".