1304675893 has 4 divisors (see below), whose sum is σ = 1304942188. Its totient is φ = 1304409600.

The previous prime is 1304675891. The next prime is 1304675941. The reversal of 1304675893 is 3985764031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3985764031 = 29 ⋅137440139.

It can be written as a sum of positive squares in 2 ways, for example, as 537219684 + 767456209 = 23178^2 + 27703^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304675893 - 2¹ = 1304675891 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304675891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125658 + ... + 135643.

It is an arithmetic number, because the mean of its divisors is an integer number (326235547).

Almost surely, 2^1304675893 is an apocalyptic number.

It is an amenable number.

1304675893 is a deficient number, since it is larger than the sum of its proper divisors (266295).

1304675893 is an equidigital number, since it uses as much as digits as its factorization.

1304675893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266294.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 1304675893 is about 36120.2975209231. The cubic root of 1304675893 is about 1092.6998394790.

The spelling of 1304675893 in words is "one billion, three hundred four million, six hundred seventy-five thousand, eight hundred ninety-three".