61394589 has 24 divisors (see below), whose sum is σ = 91291200. Its totient is φ = 39735360.

The previous prime is 61394573. The next prime is 61394611. The reversal of 61394589 is 98549316.

It is a happy number.

61394589 is a `hidden beast` number, since 61 + 3 + 9 + 4 + 589 = 666.

It is not a de Polignac number, because 61394589 - 2⁴ = 61394573 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61394569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139632 + ... + 140070.

It is an arithmetic number, because the mean of its divisors is an integer number (3803800).

Almost surely, 2^61394589 is an apocalyptic number.

It is an amenable number.

61394589 is a deficient number, since it is larger than the sum of its proper divisors (29896611).

61394589 is a wasteful number, since it uses less digits than its factorization.

61394589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 862 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 61394589 is about 7835.4699284727. The cubic root of 61394589 is about 394.4966916501.

The spelling of 61394589 in words is "sixty-one million, three hundred ninety-four thousand, five hundred eighty-nine".