906945 has 16 divisors (see below), whose sum is σ = 1563072. Its totient is φ = 446400.

The previous prime is 906943. The next prime is 906949. The reversal of 906945 is 549609.

It is a happy number.

It is not a de Polignac number, because 906945 - 2¹ = 906943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (906943) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 2131 + ... + 2520.

It is an arithmetic number, because the mean of its divisors is an integer number (97692).

2⁹⁰⁶⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

906945 is a deficient number, since it is larger than the sum of its proper divisors (656127).

906945 is a wasteful number, since it uses less digits than its factorization.

906945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4672.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 906945 is about 952.3366001577. The cubic root of 906945 is about 96.7966477108.

The spelling of 906945 in words is "nine hundred six thousand, nine hundred forty-five".