61887572 has 24 divisors (see below), whose sum is σ = 113459136. Its totient is φ = 29481408.

The previous prime is 61887571. The next prime is 61887583. The reversal of 61887572 is 27578816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61887571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24848 + ... + 27224.

It is an arithmetic number, because the mean of its divisors is an integer number (4727464).

Almost surely, 2^61887572 is an apocalyptic number.

It is an amenable number.

61887572 is a deficient number, since it is larger than the sum of its proper divisors (51571564).

61887572 is a wasteful number, since it uses less digits than its factorization.

61887572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687 (or 2685 counting only the distinct ones).

The product of its digits is 188160, while the sum is 44.

The square root of 61887572 is about 7866.8654494659. The cubic root of 61887572 is about 395.5497808192.

The spelling of 61887572 in words is "sixty-one million, eight hundred eighty-seven thousand, five hundred seventy-two".