890485 has 8 divisors (see below), whose sum is σ = 1073880. Its totient is φ = 708864.

The previous prime is 890467. The next prime is 890501. The reversal of 890485 is 584098.

It can be written as a sum of positive squares in 4 ways, for example, as 40401 + 850084 = 201^2 + 922^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-890485 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 890485.

It is a congruent number.

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, 1281 + ... + 1849.

It is an arithmetic number, because the mean of its divisors is an integer number (134235).

2⁸⁹⁰⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

890485 is a deficient number, since it is larger than the sum of its proper divisors (183395).

890485 is a wasteful number, since it uses less digits than its factorization.

890485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 890485 is about 943.6551276817. The cubic root of 890485 is about 96.2074867063.

The spelling of 890485 in words is "eight hundred ninety thousand, four hundred eighty-five".