3280427 has 4 divisors (see below), whose sum is σ = 3356760. Its totient is φ = 3204096.

The previous prime is 3280423. The next prime is 3280441. The reversal of 3280427 is 7240823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7240823 = 643 ⋅11261.

It is a cyclic number.

It is not a de Polignac number, because 3280427 - 2² = 3280423 is a prime.

It is a super-2 number, since 2×3280427² = 21522402604658, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 3280396 and 3280405.

It is not an unprimeable number, because it can be changed into a prime (3280423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38102 + ... + 38187.

It is an arithmetic number, because the mean of its divisors is an integer number (839190).

Almost surely, 2^3280427 is an apocalyptic number.

3280427 is a deficient number, since it is larger than the sum of its proper divisors (76333).

3280427 is an equidigital number, since it uses as much as digits as its factorization.

3280427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76332.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 3280427 is about 1811.1949094451. The cubic root of 3280427 is about 148.5856240399.

The spelling of 3280427 in words is "three million, two hundred eighty thousand, four hundred twenty-seven".