1179949679 has 4 divisors (see below), whose sum is σ = 1186468920. Its totient is φ = 1173430440.

The previous prime is 1179949643. The next prime is 1179949691. The reversal of 1179949679 is 9769499711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9769499711 = 23 ⋅424760857.

It is a cyclic number.

It is not a de Polignac number, because 1179949679 - 2⁸ = 1179949423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1179949699) 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, 3259349 + ... + 3259710.

It is an arithmetic number, because the mean of its divisors is an integer number (296617230).

Almost surely, 2^1179949679 is an apocalyptic number.

1179949679 is a deficient number, since it is larger than the sum of its proper divisors (6519241).

1179949679 is an equidigital number, since it uses as much as digits as its factorization.

1179949679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6519240.

The product of its digits is 7715736, while the sum is 62.

The square root of 1179949679 is about 34350.3956163535. The cubic root of 1179949679 is about 1056.7067837746.

The spelling of 1179949679 in words is "one billion, one hundred seventy-nine million, nine hundred forty-nine thousand, six hundred seventy-nine".