9028405 has 8 divisors (see below), whose sum is σ = 11098584. Its totient is φ = 7046400.

The previous prime is 9028403. The next prime is 9028423. The reversal of 9028405 is 5048209.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40401 + 8988004 = 201^2 + 2998^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9028405 - 2¹ = 9028403 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 (9028403) 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 7 ways as a sum of consecutive naturals, for example, 21816 + ... + 22225.

It is an arithmetic number, because the mean of its divisors is an integer number (1387323).

Almost surely, 2^9028405 is an apocalyptic number.

It is an amenable number.

9028405 is a deficient number, since it is larger than the sum of its proper divisors (2070179).

9028405 is a wasteful number, since it uses less digits than its factorization.

9028405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44087.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 9028405 is about 3004.7304371607. The cubic root of 9028405 is about 208.2269850103.

The spelling of 9028405 in words is "nine million, twenty-eight thousand, four hundred five".