990473 has 8 divisors (see below), whose sum is σ = 1090560. Its totient is φ = 892080.

The previous prime is 990469. The next prime is 990487. The reversal of 990473 is 374099.

It is a happy number.

990473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 990473 - 2² = 990469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (990463) 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, 1043 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (136320).

2⁹⁹⁰⁴⁷³ is an apocalyptic number.

It is an amenable number.

990473 is a deficient number, since it is larger than the sum of its proper divisors (100087).

990473 is a wasteful number, since it uses less digits than its factorization.

990473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 990473 is about 995.2251001658. The cubic root of 990473 is about 99.6814194756.

The spelling of 990473 in words is "nine hundred ninety thousand, four hundred seventy-three".