904653 has 6 divisors (see below), whose sum is σ = 1306734. Its totient is φ = 603096.

The previous prime is 904643. The next prime is 904661. The reversal of 904653 is 356409.

It is a happy number.

904653 is a `hidden beast` number, since 9 + 0 + 4 + 653 = 666.

904653 is nontrivially palindromic in base 16.

904653 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in only one way, i.e., 522729 + 381924 = 723^2 + 618^2 .

It is not a de Polignac number, because 904653 - 2⁴ = 904637 is a prime.

904653 is an undulating number in base 16.

904653 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904633) 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 in 5 ways as a sum of consecutive naturals, for example, 50250 + ... + 50267.

It is an arithmetic number, because the mean of its divisors is an integer number (217789).

2⁹⁰⁴⁶⁵³ is an apocalyptic number.

It is an amenable number.

904653 is a deficient number, since it is larger than the sum of its proper divisors (402081).

904653 is a wasteful number, since it uses less digits than its factorization.

904653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100523 (or 100520 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 904653 is about 951.1324828855. The cubic root of 904653 is about 96.7150385467.

The spelling of 904653 in words is "nine hundred four thousand, six hundred fifty-three".