30012793 has 4 divisors (see below), whose sum is σ = 30504868. Its totient is φ = 29520720.

The previous prime is 30012791. The next prime is 30012797. The reversal of 30012793 is 39721003.

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 7469289 + 22543504 = 2733^2 + 4748^2 .

It is a cyclic number.

It is not a de Polignac number, because 30012793 - 2¹ = 30012791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30012791) 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, 245946 + ... + 246067.

It is an arithmetic number, because the mean of its divisors is an integer number (7626217).

Almost surely, 2^30012793 is an apocalyptic number.

It is an amenable number.

30012793 is a deficient number, since it is larger than the sum of its proper divisors (492075).

30012793 is an equidigital number, since it uses as much as digits as its factorization.

30012793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492074.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 30012793 is about 5478.3932863569. The cubic root of 30012793 is about 310.7674119025.

Adding to 30012793 its reverse (39721003), we get a palindrome (69733796).

The spelling of 30012793 in words is "thirty million, twelve thousand, seven hundred ninety-three".