653987245 has 8 divisors (see below), whose sum is σ = 784948320. Its totient is φ = 523080720.

The previous prime is 653987203. The next prime is 653987303. The reversal of 653987245 is 542789356.

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

It is not a de Polignac number, because 653987245 - 2⁹ = 653986733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20526 + ... + 41584.

It is an arithmetic number, because the mean of its divisors is an integer number (98118540).

Almost surely, 2^653987245 is an apocalyptic number.

It is an amenable number.

653987245 is a deficient number, since it is larger than the sum of its proper divisors (130961075).

653987245 is a wasteful number, since it uses less digits than its factorization.

653987245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27275.

The product of its digits is 1814400, while the sum is 49.

The square root of 653987245 is about 25573.1743238887. The cubic root of 653987245 is about 868.0067305537.

The spelling of 653987245 in words is "six hundred fifty-three million, nine hundred eighty-seven thousand, two hundred forty-five".