653064836 has 6 divisors (see below), whose sum is σ = 1142863470. Its totient is φ = 326532416.

The previous prime is 653064821. The next prime is 653064869. The reversal of 653064836 is 638460356.

It can be written as a sum of positive squares in only one way, i.e., 392436100 + 260628736 = 19810^2 + 16144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 653064793 and 653064802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81633101 + ... + 81633108.

It is an arithmetic number, because the mean of its divisors is an integer number (190477245).

Almost surely, 2^653064836 is an apocalyptic number.

It is an amenable number.

653064836 is a deficient number, since it is larger than the sum of its proper divisors (489798634).

653064836 is a wasteful number, since it uses less digits than its factorization.

653064836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163266213 (or 163266211 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 653064836 is about 25555.1332612452. The cubic root of 653064836 is about 867.5984484107.

The spelling of 653064836 in words is "six hundred fifty-three million, sixty-four thousand, eight hundred thirty-six".