1283878579 has 4 divisors (see below), whose sum is σ = 1284851800. Its totient is φ = 1282905360.

The previous prime is 1283878571. The next prime is 1283878591. The reversal of 1283878579 is 9758783821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9758783821 = 4721 ⋅2067101.

It is a cyclic number.

It is not a de Polignac number, because 1283878579 - 2³ = 1283878571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1283878571) 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, 484629 + ... + 487270.

It is an arithmetic number, because the mean of its divisors is an integer number (321212950).

Almost surely, 2^1283878579 is an apocalyptic number.

1283878579 is a deficient number, since it is larger than the sum of its proper divisors (973221).

1283878579 is an equidigital number, since it uses as much as digits as its factorization.

1283878579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973220.

The product of its digits is 6773760, while the sum is 58.

The square root of 1283878579 is about 35831.2514294435. The cubic root of 1283878579 is about 1086.8626161354.

The spelling of 1283878579 in words is "one billion, two hundred eighty-three million, eight hundred seventy-eight thousand, five hundred seventy-nine".