1296369867 has 32 divisors (see below), whose sum is σ = 2074705920. Its totient is φ = 711313920.

The previous prime is 1296369859. The next prime is 1296369883. The reversal of 1296369867 is 7689636921.

It is a happy number.

It is not a de Polignac number, because 1296369867 - 2³ = 1296369859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (1296369847) 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 31 ways as a sum of consecutive naturals, for example, 38859 + ... + 64052.

It is an arithmetic number, because the mean of its divisors is an integer number (64834560).

Almost surely, 2^1296369867 is an apocalyptic number.

1296369867 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1296369867 is a deficient number, since it is larger than the sum of its proper divisors (778336053).

1296369867 is a wasteful number, since it uses less digits than its factorization.

1296369867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102963.

The product of its digits is 5878656, while the sum is 57.

The square root of 1296369867 is about 36005.1366752023. The cubic root of 1296369867 is about 1090.3760638808.

The spelling of 1296369867 in words is "one billion, two hundred ninety-six million, three hundred sixty-nine thousand, eight hundred sixty-seven".