653487 has 4 divisors (see below), whose sum is σ = 871320. Its totient is φ = 435656.

The previous prime is 653473. The next prime is 653491. The reversal of 653487 is 784356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 653487 - 2¹¹ = 651439 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653487.

It is not an unprimeable number, because it can be changed into a prime (653687) 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 3 ways as a sum of consecutive naturals, for example, 108912 + ... + 108917.

It is an arithmetic number, because the mean of its divisors is an integer number (217830).

2⁶⁵³⁴⁸⁷ is an apocalyptic number.

653487 is a deficient number, since it is larger than the sum of its proper divisors (217833).

653487 is a wasteful number, since it uses less digits than its factorization.

653487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217832.

The product of its digits is 20160, while the sum is 33.

The square root of 653487 is about 808.3854278746. The cubic root of 653487 is about 86.7785356824.

The spelling of 653487 in words is "six hundred fifty-three thousand, four hundred eighty-seven".