61428782 has 8 divisors (see below), whose sum is σ = 92846952. Its totient is φ = 30479800.

The previous prime is 61428761. The next prime is 61428793. The reversal of 61428782 is 28782416.

61428782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 116969 + ... + 117492.

It is an arithmetic number, because the mean of its divisors is an integer number (11605869).

Almost surely, 2^61428782 is an apocalyptic number.

61428782 is a deficient number, since it is larger than the sum of its proper divisors (31418170).

61428782 is a wasteful number, since it uses less digits than its factorization.

61428782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234594.

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

The square root of 61428782 is about 7837.6515615330. The cubic root of 61428782 is about 394.5699148347.

The spelling of 61428782 in words is "sixty-one million, four hundred twenty-eight thousand, seven hundred eighty-two".