906418 has 4 divisors (see below), whose sum is σ = 1359630. Its totient is φ = 453208.

The previous prime is 906403. The next prime is 906421. The reversal of 906418 is 814609.

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., 859329 + 47089 = 927^2 + 217^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 226603 + ... + 226606.

2⁹⁰⁶⁴¹⁸ is an apocalyptic number.

906418 is a deficient number, since it is larger than the sum of its proper divisors (453212).

906418 is a wasteful number, since it uses less digits than its factorization.

906418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453211.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 906418 is about 952.0598720669. The cubic root of 906418 is about 96.7778954832. Note that the first 3 decimals are identical.

Subtracting from 906418 its reverse (814609), we obtain a square (91809 = 303²).

The spelling of 906418 in words is "nine hundred six thousand, four hundred eighteen".