653608642 has 8 divisors (see below), whose sum is σ = 987569676. Its totient is φ = 324418752.

The previous prime is 653608573. The next prime is 653608661. The reversal of 653608642 is 246806356.

It is a happy number.

653608642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 591024721 + 62583921 = 24311^2 + 7911^2 .

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 = 653608595 and 653608604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192443 + ... + 1192990.

Almost surely, 2^653608642 is an apocalyptic number.

653608642 is a deficient number, since it is larger than the sum of its proper divisors (333961034).

653608642 is a wasteful number, since it uses less digits than its factorization.

653608642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385572.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 653608642 is about 25565.7709056465. The cubic root of 653608642 is about 867.8391975264.

The spelling of 653608642 in words is "six hundred fifty-three million, six hundred eight thousand, six hundred forty-two".