1328923 has 2 divisors, whose sum is σ = 1328924. Its totient is φ = 1328922.

The previous prime is 1328911. The next prime is 1328927. The reversal of 1328923 is 3298231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1328923 - 2⁵ = 1328891 is a prime.

1328923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1328891 and 1328900.

It is not a weakly prime, because it can be changed into another prime (1328927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664461 + 664462.

It is an arithmetic number, because the mean of its divisors is an integer number (664462).

2^1328923 is an apocalyptic number.

1328923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328923 is an equidigital number, since it uses as much as digits as its factorization.

1328923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 1328923 is about 1152.7892261814. The cubic root of 1328923 is about 109.9427525810.

The spelling of 1328923 in words is "one million, three hundred twenty-eight thousand, nine hundred twenty-three".