61934805 has 24 divisors (see below), whose sum is σ = 109975320. Its totient is φ = 32225280.

The previous prime is 61934783. The next prime is 61934819. The reversal of 61934805 is 50843916.

61934805 is a `hidden beast` number, since 619 + 34 + 8 + 0 + 5 = 666.

61934805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3090564 + 58844241 = 1758^2 + 7671^2 .

It is not a de Polignac number, because 61934805 - 2⁹ = 61934293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61934805.

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 23 ways as a sum of consecutive naturals, for example, 14940 + ... + 18629.

It is an arithmetic number, because the mean of its divisors is an integer number (4582305).

Almost surely, 2^61934805 is an apocalyptic number.

It is an amenable number.

61934805 is a deficient number, since it is larger than the sum of its proper divisors (48040515).

61934805 is a wasteful number, since it uses less digits than its factorization.

61934805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33621 (or 33618 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 61934805 is about 7869.8668984933. The cubic root of 61934805 is about 395.6503839571.

The spelling of 61934805 in words is "sixty-one million, nine hundred thirty-four thousand, eight hundred five".