990698592 has 96 divisors (see below), whose sum is σ = 2821271040. Its totient is φ = 302584320.

The previous prime is 990698563. The next prime is 990698603. The reversal of 990698592 is 295896099.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170617 + ... + 176327.

It is an arithmetic number, because the mean of its divisors is an integer number (29388240).

Almost surely, 2^990698592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 990698592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410635520).

990698592 is an abundant number, since it is smaller than the sum of its proper divisors (1830572448).

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

990698592 is a wasteful number, since it uses less digits than its factorization.

990698592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5876 (or 5868 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 57.

The square root of 990698592 is about 31475.3648430006. The cubic root of 990698592 is about 996.8898677722.

The spelling of 990698592 in words is "nine hundred ninety million, six hundred ninety-eight thousand, five hundred ninety-two".