58461813 has 18 divisors (see below), whose sum is σ = 86934614. Its totient is φ = 37830672.

The previous prime is 58461779. The next prime is 58461829. The reversal of 58461813 is 31816485.

58461813 is a `hidden beast` number, since 584 + 61 + 8 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56881764 + 1580049 = 7542^2 + 1257^2 .

It is not a de Polignac number, because 58461813 - 2⁹ = 58461301 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 (58461833) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 139318 + ... + 139736.

Almost surely, 2^58461813 is an apocalyptic number.

It is an amenable number.

58461813 is a deficient number, since it is larger than the sum of its proper divisors (28472801).

58461813 is an equidigital number, since it uses as much as digits as its factorization.

58461813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 459 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 58461813 is about 7646.0325005849. The cubic root of 58461813 is about 388.1123178038.

The spelling of 58461813 in words is "fifty-eight million, four hundred sixty-one thousand, eight hundred thirteen".