61727072 has 24 divisors (see below), whose sum is σ = 132573672. Its totient is φ = 28057600.

The previous prime is 61727053. The next prime is 61727077. The reversal of 61727072 is 27072716.

It is a happy number.

61727072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61727077) 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, 87329 + ... + 88032.

It is an arithmetic number, because the mean of its divisors is an integer number (5523903).

Almost surely, 2^61727072 is an apocalyptic number.

It is an amenable number.

61727072 is an abundant number, since it is smaller than the sum of its proper divisors (70846600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61727072 is a wasteful number, since it uses less digits than its factorization.

61727072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175382 (or 175374 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 61727072 is about 7856.6578135999. The cubic root of 61727072 is about 395.2075435517.

Adding to 61727072 its reverse (27072716), we get a palindrome (88799788).

The spelling of 61727072 in words is "sixty-one million, seven hundred twenty-seven thousand, seventy-two".