61727228 has 6 divisors (see below), whose sum is σ = 108022656. Its totient is φ = 30863612.

The previous prime is 61727227. The next prime is 61727233. The reversal of 61727228 is 82272716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61727227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7715900 + ... + 7715907.

It is an arithmetic number, because the mean of its divisors is an integer number (18003776).

Almost surely, 2^61727228 is an apocalyptic number.

It is an amenable number.

61727228 is a deficient number, since it is larger than the sum of its proper divisors (46295428).

61727228 is a wasteful number, since it uses less digits than its factorization.

61727228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15431811 (or 15431809 counting only the distinct ones).

The product of its digits is 18816, while the sum is 35.

The square root of 61727228 is about 7856.6677414792. The cubic root of 61727228 is about 395.2078764814.

The spelling of 61727228 in words is "sixty-one million, seven hundred twenty-seven thousand, two hundred twenty-eight".