990079529 has 4 divisors (see below), whose sum is σ = 997637520. Its totient is φ = 982521540.

The previous prime is 990079499. The next prime is 990079549. The reversal of 990079529 is 925970099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 925970099 = 2213 ⋅418423.

It is a cyclic number.

It is not a de Polignac number, because 990079529 - 2¹⁶ = 990013993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990079549) 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, 3778799 + ... + 3779060.

It is an arithmetic number, because the mean of its divisors is an integer number (249409380).

Almost surely, 2^990079529 is an apocalyptic number.

It is an amenable number.

990079529 is a deficient number, since it is larger than the sum of its proper divisors (7557991).

990079529 is a wasteful number, since it uses less digits than its factorization.

990079529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7557990.

The product of its (nonzero) digits is 459270, while the sum is 50.

The square root of 990079529 is about 31465.5292184956. The cubic root of 990079529 is about 996.6821805817.

The spelling of 990079529 in words is "nine hundred ninety million, seventy-nine thousand, five hundred twenty-nine".