18830573 has 2 divisors, whose sum is σ = 18830574. Its totient is φ = 18830572.

The previous prime is 18830533. The next prime is 18830579. The reversal of 18830573 is 37503881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11744329 + 7086244 = 3427^2 + 2662^2 .

It is a cyclic number.

It is not a de Polignac number, because 18830573 - 2²⁴ = 2053357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18830579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9415286 + 9415287.

It is an arithmetic number, because the mean of its divisors is an integer number (9415287).

Almost surely, 2^18830573 is an apocalyptic number.

It is an amenable number.

18830573 is a deficient number, since it is larger than the sum of its proper divisors (1).

18830573 is an equidigital number, since it uses as much as digits as its factorization.

18830573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 18830573 is about 4339.4208138875. The cubic root of 18830573 is about 266.0446388989.

The spelling of 18830573 in words is "eighteen million, eight hundred thirty thousand, five hundred seventy-three".