890959 has 4 divisors (see below), whose sum is σ = 906120. Its totient is φ = 875800.

The previous prime is 890957. The next prime is 890963. The reversal of 890959 is 959098.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 890959 - 2¹ = 890957 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7492 + ... + 7609.

It is an arithmetic number, because the mean of its divisors is an integer number (226530).

2⁸⁹⁰⁹⁵⁹ is an apocalyptic number.

890959 is a deficient number, since it is larger than the sum of its proper divisors (15161).

890959 is a wasteful number, since it uses less digits than its factorization.

890959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15160.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 890959 is about 943.9062453443. The cubic root of 890959 is about 96.2245539075.

It can be divided in two parts, 890 and 959, that added together give a square (1849 = 43²).

The spelling of 890959 in words is "eight hundred ninety thousand, nine hundred fifty-nine".