30398873 has 16 divisors (see below), whose sum is σ = 33572880. Its totient is φ = 27396096.

The previous prime is 30398821. The next prime is 30398881. The reversal of 30398873 is 37889303.

It can be written as a sum of positive squares in 8 ways, for example, as 499849 + 29899024 = 707^2 + 5468^2 .

It is a cyclic number.

It is not a de Polignac number, because 30398873 - 2¹⁰ = 30397849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30398873.

It is not an unprimeable number, because it can be changed into a prime (30398813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96965 + ... + 97277.

It is an arithmetic number, because the mean of its divisors is an integer number (2098305).

Almost surely, 2^30398873 is an apocalyptic number.

It is an amenable number.

30398873 is a deficient number, since it is larger than the sum of its proper divisors (3174007).

30398873 is a wasteful number, since it uses less digits than its factorization.

30398873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 30398873 is about 5513.5172984221. The cubic root of 30398873 is about 312.0942933547.

The spelling of 30398873 in words is "thirty million, three hundred ninety-eight thousand, eight hundred seventy-three".