990435 has 8 divisors (see below), whose sum is σ = 1584720. Its totient is φ = 528224.

The previous prime is 990397. The next prime is 990463. The reversal of 990435 is 534099.

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 990435 - 2⁶ = 990371 is a prime.

It is a super-2 number, since 2×990435² = 1961922978450, which contains 22 as substring.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33000 + ... + 33029.

It is an arithmetic number, because the mean of its divisors is an integer number (198090).

2⁹⁹⁰⁴³⁵ is an apocalyptic number.

990435 is a deficient number, since it is larger than the sum of its proper divisors (594285).

990435 is a wasteful number, since it uses less digits than its factorization.

990435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66037.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 990435 is about 995.2060088243. The cubic root of 990435 is about 99.6801446832.

The spelling of 990435 in words is "nine hundred ninety thousand, four hundred thirty-five".