61947528 has 16 divisors (see below), whose sum is σ = 154868880. Its totient is φ = 20649168.

The previous prime is 61947527. The next prime is 61947547. The reversal of 61947528 is 82574916.

61947528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61947528.

It is not an unprimeable number, because it can be changed into a prime (61947527) 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, 1290550 + ... + 1290597.

It is an arithmetic number, because the mean of its divisors is an integer number (9679305).

Almost surely, 2^61947528 is an apocalyptic number.

It is an amenable number.

61947528 is an abundant number, since it is smaller than the sum of its proper divisors (92921352).

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

61947528 is a wasteful number, since it uses less digits than its factorization.

61947528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581156 (or 2581152 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 61947528 is about 7870.6751933999. The cubic root of 61947528 is about 395.6774743531.

The spelling of 61947528 in words is "sixty-one million, nine hundred forty-seven thousand, five hundred twenty-eight".