61104839 has 2 divisors, whose sum is σ = 61104840. Its totient is φ = 61104838.

The previous prime is 61104833. The next prime is 61104847. The reversal of 61104839 is 93840116.

It is a happy number.

61104839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61104839 - 2²⁰ = 60056263 is a prime.

It is equal to p_3623828 and since 61104839 and 3623828 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61104833) 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 as a sum of consecutive naturals, namely, 30552419 + 30552420.

It is an arithmetic number, because the mean of its divisors is an integer number (30552420).

Almost surely, 2^61104839 is an apocalyptic number.

61104839 is a deficient number, since it is larger than the sum of its proper divisors (1).

61104839 is an equidigital number, since it uses as much as digits as its factorization.

61104839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 61104839 is about 7816.9584238372. The cubic root of 61104839 is about 393.8751075029.

The spelling of 61104839 in words is "sixty-one million, one hundred four thousand, eight hundred thirty-nine".