58398891 has 4 divisors (see below), whose sum is σ = 77865192. Its totient is φ = 38932592.

The previous prime is 58398841. The next prime is 58398917. The reversal of 58398891 is 19889385.

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

It is a cyclic number.

It is not a de Polignac number, because 58398891 - 2¹⁵ = 58366123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (58398811) 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, 9733146 + ... + 9733151.

It is an arithmetic number, because the mean of its divisors is an integer number (19466298).

Almost surely, 2^58398891 is an apocalyptic number.

58398891 is a deficient number, since it is larger than the sum of its proper divisors (19466301).

58398891 is a wasteful number, since it uses less digits than its factorization.

58398891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19466300.

The product of its digits is 622080, while the sum is 51.

The square root of 58398891 is about 7641.9167098314. The cubic root of 58398891 is about 387.9730270511.

The spelling of 58398891 in words is "fifty-eight million, three hundred ninety-eight thousand, eight hundred ninety-one".