30073273 has 4 divisors (see below), whose sum is σ = 30092580. Its totient is φ = 30053968.

The previous prime is 30073249. The next prime is 30073291. The reversal of 30073273 is 37237003.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2699449 + 27373824 = 1643^2 + 5232^2 .

It is a cyclic number.

It is not a de Polignac number, because 30073273 - 2¹⁷ = 29942201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30073223) 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, 7090 + ... + 10507.

It is an arithmetic number, because the mean of its divisors is an integer number (7523145).

Almost surely, 2^30073273 is an apocalyptic number.

It is an amenable number.

30073273 is a deficient number, since it is larger than the sum of its proper divisors (19307).

30073273 is a wasteful number, since it uses less digits than its factorization.

30073273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19306.

The product of its (nonzero) digits is 2646, while the sum is 25.

The square root of 30073273 is about 5483.9103749058. The cubic root of 30073273 is about 310.9760185256.

The spelling of 30073273 in words is "thirty million, seventy-three thousand, two hundred seventy-three".