30487897 has 16 divisors (see below), whose sum is σ = 34145280. Its totient is φ = 26989200.

The previous prime is 30487867. The next prime is 30487907. The reversal of 30487897 is 79878403.

It is a cyclic number.

It is not a de Polignac number, because 30487897 - 2¹¹ = 30485849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30487867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80254 + ... + 80632.

It is an arithmetic number, because the mean of its divisors is an integer number (2134080).

Almost surely, 2^30487897 is an apocalyptic number.

It is an amenable number.

30487897 is a deficient number, since it is larger than the sum of its proper divisors (3657383).

30487897 is a wasteful number, since it uses less digits than its factorization.

30487897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 30487897 is about 5521.5846457335. The cubic root of 30487897 is about 312.3986555640.

The spelling of 30487897 in words is "thirty million, four hundred eighty-seven thousand, eight hundred ninety-seven".