304545897 has 24 divisors (see below), whose sum is σ = 449639424. Its totient is φ = 198560544.

The previous prime is 304545883. The next prime is 304545919. The reversal of 304545897 is 798545403.

It is not a de Polignac number, because 304545897 - 2⁴ = 304545881 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (304545097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181858 + ... + 183524.

It is an arithmetic number, because the mean of its divisors is an integer number (18734976).

Almost surely, 2^304545897 is an apocalyptic number.

It is an amenable number.

304545897 is a deficient number, since it is larger than the sum of its proper divisors (145093527).

304545897 is a wasteful number, since it uses less digits than its factorization.

304545897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 304545897 is about 17451.2434227478. The cubic root of 304545897 is about 672.7973170681.

The spelling of 304545897 in words is "three hundred four million, five hundred forty-five thousand, eight hundred ninety-seven".