61834820 has 12 divisors (see below), whose sum is σ = 129853164. Its totient is φ = 24733920.

The previous prime is 61834819. The next prime is 61834837. The reversal of 61834820 is 2843816.

61834820 is nontrivially palindromic in base 15.

61834820 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 2 ways, for example, as 44328964 + 17505856 = 6658^2 + 4184^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 1545851 + ... + 1545890.

It is an arithmetic number, because the mean of its divisors is an integer number (10821097).

Almost surely, 2^61834820 is an apocalyptic number.

It is an amenable number.

61834820 is an abundant number, since it is smaller than the sum of its proper divisors (68018344).

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

61834820 is a wasteful number, since it uses less digits than its factorization.

61834820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091750 (or 3091748 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 61834820 is about 7863.5119380592. The cubic root of 61834820 is about 395.4373620530.

The spelling of 61834820 in words is "sixty-one million, eight hundred thirty-four thousand, eight hundred twenty".