30404197 has 4 divisors (see below), whose sum is σ = 30435340. Its totient is φ = 30373056.

The previous prime is 30404189. The next prime is 30404201. The reversal of 30404197 is 79140403.

It is a Cunningham number, because it is equal to 5514²+1.

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 9326916 + 21077281 = 3054^2 + 4591^2 .

It is a cyclic number.

It is not a de Polignac number, because 30404197 - 2³ = 30404189 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 (30404167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14058 + ... + 16075.

It is an arithmetic number, because the mean of its divisors is an integer number (7608835).

Almost surely, 2^30404197 is an apocalyptic number.

It is an amenable number.

30404197 is a deficient number, since it is larger than the sum of its proper divisors (31143).

30404197 is a wasteful number, since it uses less digits than its factorization.

30404197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31142.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 30404197 is about 5514.0000906783. Note that the first 4 decimals coincide. The cubic root of 30404197 is about 312.1125121554.

The spelling of 30404197 in words is "thirty million, four hundred four thousand, one hundred ninety-seven".