653982068 has 6 divisors (see below), whose sum is σ = 1144468626. Its totient is φ = 326991032.

The previous prime is 653982059. The next prime is 653982083. The reversal of 653982068 is 860289356.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 646074724 + 7907344 = 25418^2 + 2812^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81747755 + ... + 81747762.

It is an arithmetic number, because the mean of its divisors is an integer number (190744771).

Almost surely, 2^653982068 is an apocalyptic number.

It is an amenable number.

653982068 is a deficient number, since it is larger than the sum of its proper divisors (490486558).

653982068 is a wasteful number, since it uses less digits than its factorization.

653982068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163495521 (or 163495519 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 653982068 is about 25573.0731043416. The cubic root of 653982068 is about 868.0044401509.

The spelling of 653982068 in words is "six hundred fifty-three million, nine hundred eighty-two thousand, sixty-eight".