653497 has 8 divisors (see below), whose sum is σ = 745416. Its totient is φ = 567552.

The previous prime is 653491. The next prime is 653501. The reversal of 653497 is 794356.

It can be written as a sum of positive squares in 4 ways, for example, as 19881 + 633616 = 141^2 + 796^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 653497 - 2¹⁹ = 129209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (653491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1258 + ... + 1699.

It is an arithmetic number, because the mean of its divisors is an integer number (93177).

2⁶⁵³⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

653497 is a deficient number, since it is larger than the sum of its proper divisors (91919).

653497 is a wasteful number, since it uses less digits than its factorization.

653497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987.

The product of its digits is 22680, while the sum is 34.

The square root of 653497 is about 808.3916130193. The cubic root of 653497 is about 86.7789783237.

It can be divided in two parts, 65349 and 7, that added together give a palindrome (65356).

The spelling of 653497 in words is "six hundred fifty-three thousand, four hundred ninety-seven".