58382721 has 8 divisors (see below), whose sum is σ = 86492960. Its totient is φ = 38921796.

The previous prime is 58382719. The next prime is 58382749. The reversal of 58382721 is 12728385.

58382721 is a `hidden beast` number, since 583 + 8 + 2 + 72 + 1 = 666.

It is not a de Polignac number, because 58382721 - 2¹ = 58382719 is a prime.

It is a super-2 number, since 2×58382721² = 6817084222727682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58382761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1081135 + ... + 1081188.

It is an arithmetic number, because the mean of its divisors is an integer number (10811620).

Almost surely, 2^58382721 is an apocalyptic number.

It is an amenable number.

58382721 is a deficient number, since it is larger than the sum of its proper divisors (28110239).

58382721 is a wasteful number, since it uses less digits than its factorization.

58382721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162332 (or 2162326 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 58382721 is about 7640.8586559365. The cubic root of 58382721 is about 387.9372152811.

The spelling of 58382721 in words is "fifty-eight million, three hundred eighty-two thousand, seven hundred twenty-one".