10428289 has 4 divisors (see below), whose sum is σ = 10469124. Its totient is φ = 10387456.

The previous prime is 10428277. The next prime is 10428329. The reversal of 10428289 is 98282401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98282401 = 7 ⋅14040343.

It can be written as a sum of positive squares in 2 ways, for example, as 8952064 + 1476225 = 2992^2 + 1215^2 .

It is a cyclic number.

It is not a de Polignac number, because 10428289 - 2¹⁵ = 10395521 is a prime.

It is a super-2 number, since 2×10428289² = 217498422935042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10428239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20032 + ... + 20545.

It is an arithmetic number, because the mean of its divisors is an integer number (2617281).

Almost surely, 2^10428289 is an apocalyptic number.

It is an amenable number.

10428289 is a deficient number, since it is larger than the sum of its proper divisors (40835).

10428289 is an equidigital number, since it uses as much as digits as its factorization.

10428289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40834.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 10428289 is about 3229.2861440263. The cubic root of 10428289 is about 218.4763103411.

The spelling of 10428289 in words is "ten million, four hundred twenty-eight thousand, two hundred eighty-nine".