890408 has 8 divisors (see below), whose sum is σ = 1669530. Its totient is φ = 445200.

The previous prime is 890377. The next prime is 890419. The reversal of 890408 is 804098.

It can be written as a sum of positive squares in only one way, i.e., 574564 + 315844 = 758^2 + 562^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

890408 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55643 + ... + 55658.

2⁸⁹⁰⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

890408 is a deficient number, since it is larger than the sum of its proper divisors (779122).

890408 is a wasteful number, since it uses less digits than its factorization.

890408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111307 (or 111303 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 890408 is about 943.6143279963. The cubic root of 890408 is about 96.2047136145.

The spelling of 890408 in words is "eight hundred ninety thousand, four hundred eight".