653972249 has 8 divisors (see below), whose sum is σ = 771506688. Its totient is φ = 542465280.

The previous prime is 653972239. The next prime is 653972261. The reversal of 653972249 is 942279356.

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

It is not a de Polignac number, because 653972249 - 2⁴ = 653972233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653972219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506632 + ... + 1507065.

It is an arithmetic number, because the mean of its divisors is an integer number (96438336).

Almost surely, 2^653972249 is an apocalyptic number.

It is an amenable number.

653972249 is a deficient number, since it is larger than the sum of its proper divisors (117534439).

653972249 is a wasteful number, since it uses less digits than its factorization.

653972249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013735.

The product of its digits is 816480, while the sum is 47.

The square root of 653972249 is about 25572.8811243473. The cubic root of 653972249 is about 868.0000960061. Note that the first 4 decimals are identical.

The spelling of 653972249 in words is "six hundred fifty-three million, nine hundred seventy-two thousand, two hundred forty-nine".