653434 has 8 divisors (see below), whose sum is σ = 986868. Its totient is φ = 324480.

The previous prime is 653431. The next prime is 653461. The reversal of 653434 is 434356.

It can be written as a sum of positive squares in 2 ways, for example, as 635209 + 18225 = 797^2 + 135^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 653399 and 653408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727 + ... + 1354.

2⁶⁵³⁴³⁴ is an apocalyptic number.

653434 is a deficient number, since it is larger than the sum of its proper divisors (333434).

653434 is a wasteful number, since it uses less digits than its factorization.

653434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240.

The product of its digits is 4320, while the sum is 25.

The square root of 653434 is about 808.3526458174. The cubic root of 653434 is about 86.7761896083.

The spelling of 653434 in words is "six hundred fifty-three thousand, four hundred thirty-four".