990711179 has 4 divisors (see below), whose sum is σ = 991328520. Its totient is φ = 990093840.

The previous prime is 990711109. The next prime is 990711191. The reversal of 990711179 is 971117099.

990711179 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 971117099 = 11497 ⋅84467.

It is a cyclic number.

It is not a de Polignac number, because 990711179 - 2⁸ = 990710923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990711109) 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, 306257 + ... + 309474.

It is an arithmetic number, because the mean of its divisors is an integer number (247832130).

Almost surely, 2^990711179 is an apocalyptic number.

990711179 is a deficient number, since it is larger than the sum of its proper divisors (617341).

990711179 is a wasteful number, since it uses less digits than its factorization.

990711179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617340.

The product of its (nonzero) digits is 35721, while the sum is 44.

The square root of 990711179 is about 31475.5647923909. The cubic root of 990711179 is about 996.8940896414.

The spelling of 990711179 in words is "nine hundred ninety million, seven hundred eleven thousand, one hundred seventy-nine".