304778097 has 24 divisors (see below), whose sum is σ = 479442600. Its totient is φ = 185442048.

The previous prime is 304778087. The next prime is 304778101. The reversal of 304778097 is 790877403.

It can be written as a sum of positive squares in 4 ways, for example, as 2852721 + 301925376 = 1689^2 + 17376^2 .

It is not a de Polignac number, because 304778097 - 2¹⁰ = 304777073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (304778017) 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 23 ways as a sum of consecutive naturals, for example, 4222 + ... + 25047.

It is an arithmetic number, because the mean of its divisors is an integer number (19976775).

Almost surely, 2^304778097 is an apocalyptic number.

It is an amenable number.

304778097 is a deficient number, since it is larger than the sum of its proper divisors (174664503).

304778097 is a wasteful number, since it uses less digits than its factorization.

304778097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29377 (or 29374 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 304778097 is about 17457.8949761992. The cubic root of 304778097 is about 672.9682643171.

The spelling of 304778097 in words is "three hundred four million, seven hundred seventy-eight thousand, ninety-seven".