653909356 has 6 divisors (see below), whose sum is σ = 1144341380. Its totient is φ = 326954676.

The previous prime is 653909351. The next prime is 653909359.

It is a happy number.

653909356 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (653909351) by changing a digit.

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, 81738666 + ... + 81738673.

Almost surely, 2^653909356 is an apocalyptic number.

It is an amenable number.

653909356 is a deficient number, since it is larger than the sum of its proper divisors (490432024).

653909356 is a wasteful number, since it uses less digits than its factorization.

653909356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163477343 (or 163477341 counting only the distinct ones).

The product of its (nonzero) digits is 656100, while the sum is 46.

The square root of 653909356 is about 25571.6514132349. The cubic root of 653909356 is about 867.9722697081.

Adding to 653909356 its product of nonzero digits (656100), we get a palindrome (654565456).

The spelling of 653909356 in words is "six hundred fifty-three million, nine hundred nine thousand, three hundred fifty-six".