653090 has 8 divisors (see below), whose sum is σ = 1175580. Its totient is φ = 261232.

The previous prime is 653083. The next prime is 653111. The reversal of 653090 is 90356.

It can be written as a sum of positive squares in 2 ways, for example, as 644809 + 8281 = 803^2 + 91^2 .

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

It is a Curzon number.

It is an unprimeable number.

653090 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 32645 + ... + 32664.

2⁶⁵³⁰⁹⁰ is an apocalyptic number.

653090 is a deficient number, since it is larger than the sum of its proper divisors (522490).

653090 is a wasteful number, since it uses less digits than its factorization.

653090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65316.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 653090 is about 808.1398393842. The cubic root of 653090 is about 86.7609591749.

The spelling of 653090 in words is "six hundred fifty-three thousand, ninety".