32428369 has 2 divisors, whose sum is σ = 32428370. Its totient is φ = 32428368.

The previous prime is 32428343. The next prime is 32428381. The reversal of 32428369 is 96382423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16524225 + 15904144 = 4065^2 + 3988^2 .

It is an emirp because it is prime and its reverse (96382423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32428369 - 2⁵ = 32428337 is a prime.

It is a super-2 number, since 2×32428369² = 2103198232000322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1998604 and since 32428369 and 1998604 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (32428309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16214184 + 16214185.

It is an arithmetic number, because the mean of its divisors is an integer number (16214185).

Almost surely, 2^32428369 is an apocalyptic number.

It is an amenable number.

32428369 is a deficient number, since it is larger than the sum of its proper divisors (1).

32428369 is an equidigital number, since it uses as much as digits as its factorization.

32428369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 32428369 is about 5694.5912056969. The cubic root of 32428369 is about 318.8905885529.

It can be divided in two parts, 3242 and 8369, that added together give a palindrome (11611).

The spelling of 32428369 in words is "thirty-two million, four hundred twenty-eight thousand, three hundred sixty-nine".