890906 has 4 divisors (see below), whose sum is σ = 1336362. Its totient is φ = 445452.

The previous prime is 890893. The next prime is 890927. The reversal of 890906 is 609098.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 625681 + 265225 = 791^2 + 515^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222725 + ... + 222728.

2⁸⁹⁰⁹⁰⁶ is an apocalyptic number.

890906 is a deficient number, since it is larger than the sum of its proper divisors (445456).

890906 is a wasteful number, since it uses less digits than its factorization.

890906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445455.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 890906 is about 943.8781701046. The cubic root of 890906 is about 96.2226458501. Note that the first 3 decimals are identical.

The spelling of 890906 in words is "eight hundred ninety thousand, nine hundred six".