58539661 has 16 divisors (see below), whose sum is σ = 62996400. Its totient is φ = 54286848.

The previous prime is 58539659. The next prime is 58539683. The reversal of 58539661 is 16693585.

It can be written as a sum of positive squares in 8 ways, for example, as 4796100 + 53743561 = 2190^2 + 7331^2 .

It is a cyclic number.

It is not a de Polignac number, because 58539661 - 2¹ = 58539659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58539601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95191 + ... + 95803.

It is an arithmetic number, because the mean of its divisors is an integer number (3937275).

Almost surely, 2^58539661 is an apocalyptic number.

It is an amenable number.

58539661 is a deficient number, since it is larger than the sum of its proper divisors (4456739).

58539661 is a wasteful number, since it uses less digits than its factorization.

58539661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its digits is 194400, while the sum is 43.

The square root of 58539661 is about 7651.1215517727. The cubic root of 58539661 is about 388.2845120685.

The spelling of 58539661 in words is "fifty-eight million, five hundred thirty-nine thousand, six hundred sixty-one".