18300897 has 20 divisors (see below), whose sum is σ = 27621396. Its totient is φ = 12074400.

The previous prime is 18300869. The next prime is 18300913. The reversal of 18300897 is 79800381.

It can be written as a sum of positive squares in 2 ways, for example, as 16329681 + 1971216 = 4041^2 + 1404^2 .

It is not a de Polignac number, because 18300897 - 2⁸ = 18300641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18300197) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7063 + ... + 9299.

Almost surely, 2^18300897 is an apocalyptic number.

It is an amenable number.

18300897 is a deficient number, since it is larger than the sum of its proper divisors (9320499).

18300897 is a wasteful number, since it uses less digits than its factorization.

18300897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 18300897 is about 4277.9547683443. The cubic root of 18300897 is about 263.5263977913.

The spelling of 18300897 in words is "eighteen million, three hundred thousand, eight hundred ninety-seven".