909028 has 6 divisors (see below), whose sum is σ = 1590806. Its totient is φ = 454512.

The previous prime is 909023. The next prime is 909031. The reversal of 909028 is 820909.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 831744 + 77284 = 912^2 + 278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 908987 and 909005.

It is not an unprimeable number, because it can be changed into a prime (909023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113625 + ... + 113632.

2⁹⁰⁹⁰²⁸ is an apocalyptic number.

It is an amenable number.

909028 is a deficient number, since it is larger than the sum of its proper divisors (681778).

909028 is a wasteful number, since it uses less digits than its factorization.

909028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227261 (or 227259 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 909028 is about 953.4295988693. The cubic root of 909028 is about 96.8706960280.

The spelling of 909028 in words is "nine hundred nine thousand, twenty-eight".