58031891 has 2 divisors, whose sum is σ = 58031892. Its totient is φ = 58031890.

The previous prime is 58031881. The next prime is 58031893. The reversal of 58031891 is 19813085.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58031891 is a prime.

Together with 58031893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (58031893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29015945 + 29015946.

It is an arithmetic number, because the mean of its divisors is an integer number (29015946).

Almost surely, 2^58031891 is an apocalyptic number.

58031891 is a deficient number, since it is larger than the sum of its proper divisors (1).

58031891 is an equidigital number, since it uses as much as digits as its factorization.

58031891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 58031891 is about 7617.8665648592. The cubic root of 58031891 is about 387.1585971136.

The spelling of 58031891 in words is "fifty-eight million, thirty-one thousand, eight hundred ninety-one".