58991213 has 4 divisors (see below), whose sum is σ = 59152320. Its totient is φ = 58830108.

The previous prime is 58991203. The next prime is 58991221. The reversal of 58991213 is 31219985.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 58991213 - 2¹⁶ = 58925677 is a prime.

It is a super-2 number, since 2×58991213² = 6959926422422738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58991203) 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 3 ways as a sum of consecutive naturals, for example, 80003 + ... + 80736.

It is an arithmetic number, because the mean of its divisors is an integer number (14788080).

Almost surely, 2^58991213 is an apocalyptic number.

It is an amenable number.

58991213 is a deficient number, since it is larger than the sum of its proper divisors (161107).

58991213 is a wasteful number, since it uses less digits than its factorization.

58991213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161106.

The product of its digits is 19440, while the sum is 38.

The square root of 58991213 is about 7680.5737415899. The cubic root of 58991213 is about 389.2803142100.

The spelling of 58991213 in words is "fifty-eight million, nine hundred ninety-one thousand, two hundred thirteen".