1078789479 has 4 divisors (see below), whose sum is σ = 1438385976. Its totient is φ = 719192984.

The previous prime is 1078789469. The next prime is 1078789487. The reversal of 1078789479 is 9749878701.

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 1078789479 - 2⁴ = 1078789463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078789409) 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, 179798244 + ... + 179798249.

It is an arithmetic number, because the mean of its divisors is an integer number (359596494).

Almost surely, 2^1078789479 is an apocalyptic number.

1078789479 is a deficient number, since it is larger than the sum of its proper divisors (359596497).

1078789479 is an equidigital number, since it uses as much as digits as its factorization.

1078789479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359596496.

The product of its (nonzero) digits is 7112448, while the sum is 60.

The square root of 1078789479 is about 32844.9307960909. The cubic root of 1078789479 is about 1025.6020984414.

The spelling of 1078789479 in words is "one billion, seventy-eight million, seven hundred eighty-nine thousand, four hundred seventy-nine".