1171028379 has 16 divisors (see below), whose sum is σ = 1626015744. Its totient is φ = 748809600.

The previous prime is 1171028351. The next prime is 1171028389. The reversal of 1171028379 is 9738201711.

It is not a de Polignac number, because 1171028379 - 2⁹ = 1171027867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1171028389) 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 in 15 ways as a sum of consecutive naturals, for example, 45207 + ... + 66224.

It is an arithmetic number, because the mean of its divisors is an integer number (101625984).

Almost surely, 2^1171028379 is an apocalyptic number.

1171028379 is a deficient number, since it is larger than the sum of its proper divisors (454987365).

1171028379 is a wasteful number, since it uses less digits than its factorization.

1171028379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111578.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 1171028379 is about 34220.2919186847. The cubic root of 1171028379 is about 1054.0368796859.

The spelling of 1171028379 in words is "one billion, one hundred seventy-one million, twenty-eight thousand, three hundred seventy-nine".