653482493 has 4 divisors (see below), whose sum is σ = 671144220. Its totient is φ = 635820768.

The previous prime is 653482471. The next prime is 653482519. The reversal of 653482493 is 394284356.

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

It can be written as a sum of positive squares in 2 ways, for example, as 379977049 + 273505444 = 19493^2 + 16538^2 .

It is a cyclic number.

It is not a de Polignac number, because 653482493 - 2⁸ = 653482237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653482393) 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, 8830808 + ... + 8830881.

It is an arithmetic number, because the mean of its divisors is an integer number (167786055).

Almost surely, 2^653482493 is an apocalyptic number.

It is an amenable number.

653482493 is a deficient number, since it is larger than the sum of its proper divisors (17661727).

653482493 is a wasteful number, since it uses less digits than its factorization.

653482493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17661726.

The product of its digits is 622080, while the sum is 44.

The square root of 653482493 is about 25563.3036401792. The cubic root of 653482493 is about 867.7833618250.

The spelling of 653482493 in words is "six hundred fifty-three million, four hundred eighty-two thousand, four hundred ninety-three".