61616782 has 16 divisors (see below), whose sum is σ = 94048992. Its totient is φ = 30270240.

The previous prime is 61616777. The next prime is 61616831. The reversal of 61616782 is 28761616.

61616782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 55828 + ... + 56920.

It is an arithmetic number, because the mean of its divisors is an integer number (5878062).

Almost surely, 2^61616782 is an apocalyptic number.

61616782 is a deficient number, since it is larger than the sum of its proper divisors (32432210).

61616782 is a wasteful number, since it uses less digits than its factorization.

61616782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563.

The product of its digits is 24192, while the sum is 37.

The square root of 61616782 is about 7849.6357877293. The cubic root of 61616782 is about 394.9720260059.

The spelling of 61616782 in words is "sixty-one million, six hundred sixteen thousand, seven hundred eighty-two".