906639223 has 16 divisors (see below), whose sum is σ = 1104494400. Its totient is φ = 726483456.

The previous prime is 906639221. The next prime is 906639229. The reversal of 906639223 is 322936609.

It is a cyclic number.

It is not a de Polignac number, because 906639223 - 2¹ = 906639221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906639221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7836 + ... + 43297.

It is an arithmetic number, because the mean of its divisors is an integer number (69030900).

Almost surely, 2^906639223 is an apocalyptic number.

906639223 is a deficient number, since it is larger than the sum of its proper divisors (197855177).

906639223 is a wasteful number, since it uses less digits than its factorization.

906639223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51306.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 906639223 is about 30110.4503951701. The cubic root of 906639223 is about 967.8576814054.

The spelling of 906639223 in words is "nine hundred six million, six hundred thirty-nine thousand, two hundred twenty-three".