1326828597 has 32 divisors (see below), whose sum is σ = 1923850368. Its totient is φ = 810141696.

The previous prime is 1326828589. The next prime is 1326828599. The reversal of 1326828597 is 7958286231.

It is not a de Polignac number, because 1326828597 - 2³ = 1326828589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326828599) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 685443 + ... + 687375.

It is an arithmetic number, because the mean of its divisors is an integer number (60120324).

Almost surely, 2^1326828597 is an apocalyptic number.

1326828597 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1326828597 is a deficient number, since it is larger than the sum of its proper divisors (597021771).

1326828597 is a wasteful number, since it uses less digits than its factorization.

1326828597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309.

The product of its digits is 1451520, while the sum is 51.

The square root of 1326828597 is about 36425.6584978227. The cubic root of 1326828597 is about 1098.8496505840.

The spelling of 1326828597 in words is "one billion, three hundred twenty-six million, eight hundred twenty-eight thousand, five hundred ninety-seven".