304540897 has 2 divisors, whose sum is σ = 304540898. Its totient is φ = 304540896.

The previous prime is 304540891. The next prime is 304540933. The reversal of 304540897 is 798045403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300536896 + 4004001 = 17336^2 + 2001^2 .

It is a cyclic number.

It is not a de Polignac number, because 304540897 - 2¹¹ = 304538849 is a prime.

It is not a weakly prime, because it can be changed into another prime (304540891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152270448 + 152270449.

It is an arithmetic number, because the mean of its divisors is an integer number (152270449).

Almost surely, 2^304540897 is an apocalyptic number.

It is an amenable number.

304540897 is a deficient number, since it is larger than the sum of its proper divisors (1).

304540897 is an equidigital number, since it uses as much as digits as its factorization.

304540897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 304540897 is about 17451.1001658921. The cubic root of 304540897 is about 672.7936350780.

The spelling of 304540897 in words is "three hundred four million, five hundred forty thousand, eight hundred ninety-seven".