30196991 has 8 divisors (see below), whose sum is σ = 33015168. Its totient is φ = 27391000.

The previous prime is 30196979. The next prime is 30197003. The reversal of 30196991 is 19969103.

It is an interprime number because it is at equal distance from previous prime (30196979) and next prime (30197003).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30196991 - 2⁶ = 30196927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30190991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2606 + ... + 8196.

It is an arithmetic number, because the mean of its divisors is an integer number (4126896).

Almost surely, 2^30196991 is an apocalyptic number.

30196991 is a deficient number, since it is larger than the sum of its proper divisors (2818177).

30196991 is a wasteful number, since it uses less digits than its factorization.

30196991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6093.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 30196991 is about 5495.1788869881. The cubic root of 30196991 is about 311.4018749886.

The spelling of 30196991 in words is "thirty million, one hundred ninety-six thousand, nine hundred ninety-one".