1428923 has 2 divisors, whose sum is σ = 1428924. Its totient is φ = 1428922.

The previous prime is 1428899. The next prime is 1428929. The reversal of 1428923 is 3298241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1428923 - 2¹⁴ = 1412539 is a prime.

It is not a weakly prime, because it can be changed into another prime (1428929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714461 + 714462.

It is an arithmetic number, because the mean of its divisors is an integer number (714462).

2^1428923 is an apocalyptic number.

1428923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428923 is an equidigital number, since it uses as much as digits as its factorization.

1428923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 1428923 is about 1195.3756731672. The cubic root of 1428923 is about 112.6340262733.

The spelling of 1428923 in words is "one million, four hundred twenty-eight thousand, nine hundred twenty-three".