890385 has 8 divisors (see below), whose sum is σ = 1424640. Its totient is φ = 474864.

The previous prime is 890377. The next prime is 890419. The reversal of 890385 is 583098.

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

It is not a de Polignac number, because 890385 - 2³ = 890377 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a nialpdrome in base 16.

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, 29665 + ... + 29694.

It is an arithmetic number, because the mean of its divisors is an integer number (178080).

2⁸⁹⁰³⁸⁵ is an apocalyptic number.

It is an amenable number.

890385 is a deficient number, since it is larger than the sum of its proper divisors (534255).

890385 is a wasteful number, since it uses less digits than its factorization.

890385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59367.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 890385 is about 943.6021407352. The cubic root of 890385 is about 96.2038852574.

It can be divided in two parts, 890 and 385, that added together give a triangular number (1275 = T₅₀).

The spelling of 890385 in words is "eight hundred ninety thousand, three hundred eighty-five".