58306681 has 4 divisors (see below), whose sum is σ = 58602852. Its totient is φ = 58010512.

The previous prime is 58306669. The next prime is 58306693. The reversal of 58306681 is 18660385.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18660385 = 5 ⋅3732077.

It is an interprime number because it is at equal distance from previous prime (58306669) and next prime (58306693).

It can be written as a sum of positive squares in 2 ways, for example, as 56866681 + 1440000 = 7541^2 + 1200^2 .

It is a cyclic number.

It is not a de Polignac number, because 58306681 - 2⁷ = 58306553 is a prime.

It is a super-2 number, since 2×58306681² = 6799338098471522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 58306681.

It is not an unprimeable number, because it can be changed into a prime (58306621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147790 + ... + 148183.

It is an arithmetic number, because the mean of its divisors is an integer number (14650713).

Almost surely, 2^58306681 is an apocalyptic number.

It is an amenable number.

58306681 is a deficient number, since it is larger than the sum of its proper divisors (296171).

58306681 is a wasteful number, since it uses less digits than its factorization.

58306681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296170.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 58306681 is about 7635.8811541302. The cubic root of 58306681 is about 387.7687204400.

The spelling of 58306681 in words is "fifty-eight million, three hundred six thousand, six hundred eighty-one".