3286421 has 4 divisors (see below), whose sum is σ = 3318432. Its totient is φ = 3254412.

The previous prime is 3286399. The next prime is 3286427. The reversal of 3286421 is 1246823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3286421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3286427) 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, 15851 + ... + 16056.

It is an arithmetic number, because the mean of its divisors is an integer number (829608).

Almost surely, 2^3286421 is an apocalyptic number.

It is an amenable number.

3286421 is a deficient number, since it is larger than the sum of its proper divisors (32011).

3286421 is a wasteful number, since it uses less digits than its factorization.

3286421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32010.

The product of its digits is 2304, while the sum is 26.

The square root of 3286421 is about 1812.8488629778. The cubic root of 3286421 is about 148.6760675839.

The spelling of 3286421 in words is "three million, two hundred eighty-six thousand, four hundred twenty-one".