58406813 has 4 divisors (see below), whose sum is σ = 58460220. Its totient is φ = 58353408.

The previous prime is 58406797. The next prime is 58406863. The reversal of 58406813 is 31860485.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11648569 + 46758244 = 3413^2 + 6838^2 .

It is a cyclic number.

It is not a de Polignac number, because 58406813 - 2⁴ = 58406797 is a prime.

It is a super-2 number, since 2×58406813² = 6822711609633938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58406863) 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, 25028 + ... + 27261.

It is an arithmetic number, because the mean of its divisors is an integer number (14615055).

Almost surely, 2^58406813 is an apocalyptic number.

It is an amenable number.

58406813 is a deficient number, since it is larger than the sum of its proper divisors (53407).

58406813 is a wasteful number, since it uses less digits than its factorization.

58406813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53406.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 58406813 is about 7642.4350177152. The cubic root of 58406813 is about 387.9905695267.

The spelling of 58406813 in words is "fifty-eight million, four hundred six thousand, eight hundred thirteen".