61872727 has 16 divisors (see below), whose sum is σ = 73423872. Its totient is φ = 51037920.

The previous prime is 61872719. The next prime is 61872739. The reversal of 61872727 is 72727816.

61872727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61872727 - 2³ = 61872719 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61872727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61872787) 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 15 ways as a sum of consecutive naturals, for example, 18528 + ... + 21610.

It is an arithmetic number, because the mean of its divisors is an integer number (4588992).

Almost surely, 2^61872727 is an apocalyptic number.

61872727 is a deficient number, since it is larger than the sum of its proper divisors (11551145).

61872727 is a wasteful number, since it uses less digits than its factorization.

61872727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198.

The product of its digits is 65856, while the sum is 40.

The square root of 61872727 is about 7865.9218785849. The cubic root of 61872727 is about 395.5181513883.

The spelling of 61872727 in words is "sixty-one million, eight hundred seventy-two thousand, seven hundred twenty-seven".