1428693 has 12 divisors (see below), whose sum is σ = 2216160. Its totient is φ = 816312.

The previous prime is 1428689. The next prime is 1428703. The reversal of 1428693 is 3968241.

1428693 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 1428693 - 2² = 1428689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4713 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (184680).

2^1428693 is an apocalyptic number.

It is an amenable number.

1428693 is a deficient number, since it is larger than the sum of its proper divisors (787467).

1428693 is an equidigital number, since it uses as much as digits as its factorization.

1428693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9736 (or 9729 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 1428693 is about 1195.2794652298. The cubic root of 1428693 is about 112.6279827436.

The spelling of 1428693 in words is "one million, four hundred twenty-eight thousand, six hundred ninety-three".