30196957 has 4 divisors (see below), whose sum is σ = 34510816. Its totient is φ = 25883100.

The previous prime is 30196937. The next prime is 30196963. The reversal of 30196957 is 75969103.

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.

It is a cyclic number.

It is not a de Polignac number, because 30196957 - 2²³ = 21808349 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 (30196927) 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, 2156919 + ... + 2156932.

It is an arithmetic number, because the mean of its divisors is an integer number (8627704).

Almost surely, 2^30196957 is an apocalyptic number.

It is an amenable number.

30196957 is a deficient number, since it is larger than the sum of its proper divisors (4313859).

30196957 is an equidigital number, since it uses as much as digits as its factorization.

30196957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313858.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 30196957 is about 5495.1757933664. The cubic root of 30196957 is about 311.4017581153.

The spelling of 30196957 in words is "thirty million, one hundred ninety-six thousand, nine hundred fifty-seven".