1109964379 has 4 divisors (see below), whose sum is σ = 1118704384. Its totient is φ = 1101224376.

The previous prime is 1109964377. The next prime is 1109964413. The reversal of 1109964379 is 9734699011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1109964379 - 2¹ = 1109964377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1109964377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4369812 + ... + 4370065.

It is an arithmetic number, because the mean of its divisors is an integer number (279676096).

Almost surely, 2^1109964379 is an apocalyptic number.

1109964379 is a deficient number, since it is larger than the sum of its proper divisors (8740005).

1109964379 is an equidigital number, since it uses as much as digits as its factorization.

1109964379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8740004.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 1109964379 is about 33316.1279112684. The cubic root of 1109964379 is about 1035.3877296720.

The spelling of 1109964379 in words is "one billion, one hundred nine million, nine hundred sixty-four thousand, three hundred seventy-nine".