1304013897 has 60 divisors (see below), whose sum is σ = 2042299468. Its totient is φ = 828921600.

The previous prime is 1304013877. The next prime is 1304013899. The reversal of 1304013897 is 7983104031.

It is a happy number.

1304013897 is a `hidden beast` number, since 130 + 401 + 38 + 97 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 890664336 + 413349561 = 29844^2 + 20331^2 .

It is not a de Polignac number, because 1304013897 - 2⁷ = 1304013769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304013899) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8305743 + ... + 8305899.

Almost surely, 2^1304013897 is an apocalyptic number.

It is an amenable number.

1304013897 is a deficient number, since it is larger than the sum of its proper divisors (738285571).

1304013897 is an equidigital number, since it uses as much as digits as its factorization.

1304013897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1304013897 is about 36111.1325909338. The cubic root of 1304013897 is about 1092.5149952821.

The spelling of 1304013897 in words is "one billion, three hundred four million, thirteen thousand, eight hundred ninety-seven".