653212072 has 8 divisors (see below), whose sum is σ = 1224772650. Its totient is φ = 326606032.

The previous prime is 653212061. The next prime is 653212081. The reversal of 653212072 is 270212356.

It can be written as a sum of positive squares in only one way, i.e., 363054916 + 290157156 = 19054^2 + 17034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×653212072² = 853372022013066368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 653212072.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 40825747 + ... + 40825762.

Almost surely, 2^653212072 is an apocalyptic number.

It is an amenable number.

653212072 is a deficient number, since it is larger than the sum of its proper divisors (571560578).

653212072 is a wasteful number, since it uses less digits than its factorization.

653212072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81651515 (or 81651511 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 653212072 is about 25558.0138508453. The cubic root of 653212072 is about 867.6636446564.

The spelling of 653212072 in words is "six hundred fifty-three million, two hundred twelve thousand, seventy-two".