1328613 has 32 divisors (see below), whose sum is σ = 2204160. Its totient is φ = 699840.

The previous prime is 1328611. The next prime is 1328617. The reversal of 1328613 is 3168231.

It is not a de Polignac number, because 1328613 - 2¹ = 1328611 is a prime.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328611) 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, 8070 + ... + 8232.

It is an arithmetic number, because the mean of its divisors is an integer number (68880).

2^1328613 is an apocalyptic number.

1328613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1328613 is a deficient number, since it is larger than the sum of its proper divisors (875547).

1328613 is a wasteful number, since it uses less digits than its factorization.

1328613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its digits is 864, while the sum is 24.

The square root of 1328613 is about 1152.6547618433. The cubic root of 1328613 is about 109.9342030754.

The spelling of 1328613 in words is "one million, three hundred twenty-eight thousand, six hundred thirteen".