990927 has 32 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 560952.

The previous prime is 990923. The next prime is 990953. The reversal of 990927 is 729099.

It is not a de Polignac number, because 990927 - 2² = 990923 is a prime.

It is a super-3 number, since 3×990927³ = 2919081633311183949, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 990891 and 990900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9208 + ... + 9314.

It is an arithmetic number, because the mean of its divisors is an integer number (54000).

2⁹⁹⁰⁹²⁷ is an apocalyptic number.

990927 is a deficient number, since it is larger than the sum of its proper divisors (737073).

990927 is a wasteful number, since it uses less digits than its factorization.

990927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 990927 is about 995.4531631373. The cubic root of 990927 is about 99.6966473690.

It can be divided in two parts, 99092 and 7, that added together give a palindrome (99099).

The spelling of 990927 in words is "nine hundred ninety thousand, nine hundred twenty-seven".