61793289 has 6 divisors (see below), whose sum is σ = 89256986. Its totient is φ = 41195520.

The previous prime is 61793269. The next prime is 61793311. The reversal of 61793289 is 98239716.

61793289 is a `hidden beast` number, since 617 + 9 + 3 + 28 + 9 = 666.

61793289 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 only one way, i.e., 61779600 + 13689 = 7860^2 + 117^2 .

It is not a de Polignac number, because 61793289 - 2⁷ = 61793161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61793209) 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 in 5 ways as a sum of consecutive naturals, for example, 3432952 + ... + 3432969.

Almost surely, 2^61793289 is an apocalyptic number.

It is an amenable number.

61793289 is a deficient number, since it is larger than the sum of its proper divisors (27463697).

61793289 is a wasteful number, since it uses less digits than its factorization.

61793289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6865927 (or 6865924 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 61793289 is about 7860.8707532944. The cubic root of 61793289 is about 395.3488111511.

The spelling of 61793289 in words is "sixty-one million, seven hundred ninety-three thousand, two hundred eighty-nine".