30800173 has 4 divisors (see below), whose sum is σ = 30812320. Its totient is φ = 30788028.

The previous prime is 30800153. The next prime is 30800177. The reversal of 30800173 is 37100803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30800173 - 2⁹ = 30799661 is a prime.

It is a super-3 number, since 3×30800173³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30800177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663 + ... + 7876.

It is an arithmetic number, because the mean of its divisors is an integer number (7703080).

Almost surely, 2^30800173 is an apocalyptic number.

It is an amenable number.

30800173 is a deficient number, since it is larger than the sum of its proper divisors (12147).

30800173 is an equidigital number, since it uses as much as digits as its factorization.

30800173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12146.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 30800173 is about 5549.7903564009. The cubic root of 30800173 is about 313.4616283384.

Adding to 30800173 its reverse (37100803), we get a palindrome (67900976).

The spelling of 30800173 in words is "thirty million, eight hundred thousand, one hundred seventy-three".