653497928 has 8 divisors (see below), whose sum is σ = 1225308630. Its totient is φ = 326748960.

The previous prime is 653497921. The next prime is 653497981. The reversal of 653497928 is 829794356.

It is a happy number.

653497928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 386436964 + 267060964 = 19658^2 + 16342^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 653497928.

It is not an unprimeable number, because it can be changed into a prime (653497921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40843613 + ... + 40843628.

Almost surely, 2^653497928 is an apocalyptic number.

It is an amenable number.

653497928 is a deficient number, since it is larger than the sum of its proper divisors (571810702).

653497928 is a wasteful number, since it uses less digits than its factorization.

653497928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81687247 (or 81687243 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 53.

The square root of 653497928 is about 25563.6055359959. The cubic root of 653497928 is about 867.7901940054.

The spelling of 653497928 in words is "six hundred fifty-three million, four hundred ninety-seven thousand, nine hundred twenty-eight".