70573 has 2 divisors, whose sum is σ = 70574. Its totient is φ = 70572.

The previous prime is 70571. The next prime is 70583. The reversal of 70573 is 37507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51529 + 19044 = 227^2 + 138^2 .

It is an emirp because it is prime and its reverse (37507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70573 - 2¹ = 70571 is a prime.

Together with 70571, it forms a pair of twin primes.

It is an Ulam number.

70573 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35286 + 35287.

It is an arithmetic number, because the mean of its divisors is an integer number (35287).

2⁷⁰⁵⁷³ is an apocalyptic number.

It is an amenable number.

70573 is a deficient number, since it is larger than the sum of its proper divisors (1).

70573 is an equidigital number, since it uses as much as digits as its factorization.

70573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 735, while the sum is 22.

The square root of 70573 is about 265.6557923329. The cubic root of 70573 is about 41.3249997652.

The spelling of 70573 in words is "seventy thousand, five hundred seventy-three".