990179106 has 16 divisors (see below), whose sum is σ = 2263266624. Its totient is φ = 282908304.

The previous prime is 990179101. The next prime is 990179117. The reversal of 990179106 is 601971099.

990179106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 23575693 = 990179106 / (9 + 9 + 0 + 1 + 7 + 9 + 1 + 0 + 6).

It is not an unprimeable number, because it can be changed into a prime (990179101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11787805 + ... + 11787888.

It is an arithmetic number, because the mean of its divisors is an integer number (141454164).

Almost surely, 2^990179106 is an apocalyptic number.

990179106 is an abundant number, since it is smaller than the sum of its proper divisors (1273087518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

990179106 is a wasteful number, since it uses less digits than its factorization.

990179106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23575705.

The product of its (nonzero) digits is 30618, while the sum is 42.

The square root of 990179106 is about 31467.1114975620. Note that the first 3 decimals coincide. The cubic root of 990179106 is about 996.7155931483.

The spelling of 990179106 in words is "nine hundred ninety million, one hundred seventy-nine thousand, one hundred six".