990326 has 8 divisors (see below), whose sum is σ = 1533504. Its totient is φ = 479160.

The previous prime is 990323. The next prime is 990329. The reversal of 990326 is 623099.

It is an interprime number because it is at equal distance from previous prime (990323) and next prime (990329).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990323) 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, 7925 + ... + 8048.

It is an arithmetic number, because the mean of its divisors is an integer number (191688).

2⁹⁹⁰³²⁶ is an apocalyptic number.

990326 is a deficient number, since it is larger than the sum of its proper divisors (543178).

990326 is a wasteful number, since it uses less digits than its factorization.

990326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16006.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 990326 is about 995.1512447864. The cubic root of 990326 is about 99.6764878609.

The spelling of 990326 in words is "nine hundred ninety thousand, three hundred twenty-six".