1099392379 has 2 divisors, whose sum is σ = 1099392380. Its totient is φ = 1099392378.

The previous prime is 1099392331. The next prime is 1099392389. The reversal of 1099392379 is 9732939901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1099392379 - 2⁷ = 1099392251 is a prime.

It is not a weakly prime, because it can be changed into another prime (1099392319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549696189 + 549696190.

It is an arithmetic number, because the mean of its divisors is an integer number (549696190).

Almost surely, 2^1099392379 is an apocalyptic number.

1099392379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099392379 is an equidigital number, since it uses as much as digits as its factorization.

1099392379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 826686, while the sum is 52.

The square root of 1099392379 is about 33157.0864069809. The cubic root of 1099392379 is about 1032.0900092131.

The spelling of 1099392379 in words is "one billion, ninety-nine million, three hundred ninety-two thousand, three hundred seventy-nine".