30196993 has 4 divisors (see below), whose sum is σ = 30246868. Its totient is φ = 30147120.

The previous prime is 30196979. The next prime is 30197003. The reversal of 30196993 is 39969103.

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 2917264 + 27279729 = 1708^2 + 5223^2 .

It is a cyclic number.

It is not a de Polignac number, because 30196993 - 2¹⁷ = 30065921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30196963) 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, 24018 + ... + 25243.

It is an arithmetic number, because the mean of its divisors is an integer number (7561717).

Almost surely, 2^30196993 is an apocalyptic number.

It is an amenable number.

30196993 is a deficient number, since it is larger than the sum of its proper divisors (49875).

30196993 is an equidigital number, since it uses as much as digits as its factorization.

30196993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49874.

The product of its (nonzero) digits is 39366, while the sum is 40.

The square root of 30196993 is about 5495.1790689658. The cubic root of 30196993 is about 311.4018818635.

The spelling of 30196993 in words is "thirty million, one hundred ninety-six thousand, nine hundred ninety-three".