890049 has 4 divisors (see below), whose sum is σ = 1186736. Its totient is φ = 593364.

The previous prime is 890027. The next prime is 890053. The reversal of 890049 is 940098.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 890049 - 2⁷ = 889921 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 889998 and 890025.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 890049.

It is not an unprimeable number, because it can be changed into a prime (891049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148339 + ... + 148344.

It is an arithmetic number, because the mean of its divisors is an integer number (296684).

2⁸⁹⁰⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

890049 is a deficient number, since it is larger than the sum of its proper divisors (296687).

890049 is a wasteful number, since it uses less digits than its factorization.

890049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296686.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 890049 is about 943.4240827963. The cubic root of 890049 is about 96.1917824133.

The spelling of 890049 in words is "eight hundred ninety thousand, forty-nine".