653473 has 2 divisors, whose sum is σ = 653474. Its totient is φ = 653472.
The previous prime is 653461. The next prime is 653491. The reversal of 653473 is 374356.
653473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 535824 + 117649 = 732^2 + 343^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-653473 is a prime.
It is an Ulam number.
It is not a weakly prime, because it can be changed into another prime (653273) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326736 + 326737.
It is an arithmetic number, because the mean of its divisors is an integer number (326737).
2653473 is an apocalyptic number.
It is an amenable number.
653473 is a deficient number, since it is larger than the sum of its proper divisors (1).
653473 is an equidigital number, since it uses as much as digits as its factorization.
653473 is an evil number, because the sum of its binary digits is even.
The product of its digits is 7560, while the sum is 28.
The square root of 653473 is about 808.3767685925. The cubic root of 653473 is about 86.7779159770. Note that the first 3 decimals are identical.
The spelling of 653473 in words is "six hundred fifty-three thousand, four hundred seventy-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •