1158798479 has 4 divisors (see below), whose sum is σ = 1166575800. Its totient is φ = 1151021160.

The previous prime is 1158798451. The next prime is 1158798493. The reversal of 1158798479 is 9748978511.

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 1158798479 - 2¹⁶ = 1158732943 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 (1158798499) 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, 3888437 + ... + 3888734.

It is an arithmetic number, because the mean of its divisors is an integer number (291643950).

Almost surely, 2^1158798479 is an apocalyptic number.

1158798479 is a deficient number, since it is larger than the sum of its proper divisors (7777321).

1158798479 is an equidigital number, since it uses as much as digits as its factorization.

1158798479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7777320.

The product of its digits is 5080320, while the sum is 59.

The square root of 1158798479 is about 34041.1292262757. The cubic root of 1158798479 is about 1050.3546735318.

The spelling of 1158798479 in words is "one billion, one hundred fifty-eight million, seven hundred ninety-eight thousand, four hundred seventy-nine".