58778213 has 16 divisors (see below), whose sum is σ = 64683696. Its totient is φ = 53084160.

The previous prime is 58778207. The next prime is 58778233. The reversal of 58778213 is 31287785.

It can be written as a sum of positive squares in 8 ways, for example, as 5166529 + 53611684 = 2273^2 + 7322^2 .

It is a cyclic number.

It is not a de Polignac number, because 58778213 - 2¹⁸ = 58516069 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 (58778233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228581 + ... + 228837.

It is an arithmetic number, because the mean of its divisors is an integer number (4042731).

Almost surely, 2^58778213 is an apocalyptic number.

It is an amenable number.

58778213 is a deficient number, since it is larger than the sum of its proper divisors (5905483).

58778213 is a wasteful number, since it uses less digits than its factorization.

58778213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584.

The product of its digits is 94080, while the sum is 41.

The square root of 58778213 is about 7666.6950506721. The cubic root of 58778213 is about 388.8112234231.

The spelling of 58778213 in words is "fifty-eight million, seven hundred seventy-eight thousand, two hundred thirteen".