30028097 has 4 divisors (see below), whose sum is σ = 32757936. Its totient is φ = 27298260.

The previous prime is 30028091. The next prime is 30028111. The reversal of 30028097 is 79082003.

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 de Polignac number, because none of the positive numbers 2^k-30028097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30028091) 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, 1364903 + ... + 1364924.

It is an arithmetic number, because the mean of its divisors is an integer number (8189484).

Almost surely, 2^30028097 is an apocalyptic number.

It is an amenable number.

30028097 is a deficient number, since it is larger than the sum of its proper divisors (2729839).

30028097 is a wasteful number, since it uses less digits than its factorization.

30028097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729838.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 30028097 is about 5479.7898682340. The cubic root of 30028097 is about 310.8202246738.

The spelling of 30028097 in words is "thirty million, twenty-eight thousand, ninety-seven".