58070021 has 2 divisors, whose sum is σ = 58070022. Its totient is φ = 58070020.

The previous prime is 58070017. The next prime is 58070029. The reversal of 58070021 is 12007085.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57988225 + 81796 = 7615^2 + 286^2 .

It is a cyclic number.

It is not a de Polignac number, because 58070021 - 2² = 58070017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58070029) 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 as a sum of consecutive naturals, namely, 29035010 + 29035011.

It is an arithmetic number, because the mean of its divisors is an integer number (29035011).

Almost surely, 2^58070021 is an apocalyptic number.

It is an amenable number.

58070021 is a deficient number, since it is larger than the sum of its proper divisors (1).

58070021 is an equidigital number, since it uses as much as digits as its factorization.

58070021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 58070021 is about 7620.3688230951. The cubic root of 58070021 is about 387.2433730590.

The spelling of 58070021 in words is "fifty-eight million, seventy thousand, twenty-one".