653472328 has 8 divisors (see below), whose sum is σ = 1225260630. Its totient is φ = 326736160.

The previous prime is 653472307. The next prime is 653472329. The reversal of 653472328 is 823274356.

It can be written as a sum of positive squares in only one way, i.e., 623900484 + 29571844 = 24978^2 + 5438^2 .

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

It is not an unprimeable number, because it can be changed into a prime (653472329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40842013 + ... + 40842028.

Almost surely, 2^653472328 is an apocalyptic number.

It is an amenable number.

653472328 is a deficient number, since it is larger than the sum of its proper divisors (571788302).

653472328 is a wasteful number, since it uses less digits than its factorization.

653472328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81684047 (or 81684043 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 653472328 is about 25563.1048192507. The cubic root of 653472328 is about 867.7788623096.

The spelling of 653472328 in words is "six hundred fifty-three million, four hundred seventy-two thousand, three hundred twenty-eight".