1428497 has 6 divisors (see below), whose sum is σ = 1661778. Its totient is φ = 1224384.

The previous prime is 1428491. The next prime is 1428521. The reversal of 1428497 is 7948241.

It can be written as a sum of positive squares in only one way, i.e., 802816 + 625681 = 896^2 + 791^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1428497 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14528 + ... + 14625.

It is an arithmetic number, because the mean of its divisors is an integer number (276963).

2^1428497 is an apocalyptic number.

It is an amenable number.

1428497 is a deficient number, since it is larger than the sum of its proper divisors (233281).

1428497 is an equidigital number, since it uses as much as digits as its factorization.

1428497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29167 (or 29160 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 1428497 is about 1195.1974732236. The cubic root of 1428497 is about 112.6228320932.

The spelling of 1428497 in words is "one million, four hundred twenty-eight thousand, four hundred ninety-seven".