61282784 has 48 divisors (see below), whose sum is σ = 125637120. Its totient is φ = 29393280.

The previous prime is 61282763. The next prime is 61282789. The reversal of 61282784 is 48728216.

61282784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61282784² = 7511159229581312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61282789) 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 7 ways as a sum of consecutive naturals, for example, 161507 + ... + 161885.

It is an arithmetic number, because the mean of its divisors is an integer number (2617440).

Almost surely, 2^61282784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61282784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62818560).

61282784 is an abundant number, since it is smaller than the sum of its proper divisors (64354336).

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

61282784 is a wasteful number, since it uses less digits than its factorization.

61282784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 575 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 61282784 is about 7828.3321339861. The cubic root of 61282784 is about 394.2570749644.

The spelling of 61282784 in words is "sixty-one million, two hundred eighty-two thousand, seven hundred eighty-four".