61572328 has 16 divisors (see below), whose sum is σ = 115549380. Its totient is φ = 30759168.

The previous prime is 61572323. The next prime is 61572337. The reversal of 61572328 is 82327516.

It is a happy number.

61572328 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 2 ways, for example, as 48191364 + 13380964 = 6942^2 + 3658^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61572293 and 61572302.

It is not an unprimeable number, because it can be changed into a prime (61572323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8976 + ... + 14272.

Almost surely, 2^61572328 is an apocalyptic number.

It is an amenable number.

61572328 is a deficient number, since it is larger than the sum of its proper divisors (53977052).

61572328 is a wasteful number, since it uses less digits than its factorization.

61572328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6756 (or 6752 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 61572328 is about 7846.8036804804. The cubic root of 61572328 is about 394.8770177411.

The spelling of 61572328 in words is "sixty-one million, five hundred seventy-two thousand, three hundred twenty-eight".