3207421 has 8 divisors (see below), whose sum is σ = 3744000. Its totient is φ = 2690448.

The previous prime is 3207397. The next prime is 3207431. The reversal of 3207421 is 1247023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3207421 - 2⁹ = 3206909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3207431) 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 7 ways as a sum of consecutive naturals, for example, 4546 + ... + 5203.

It is an arithmetic number, because the mean of its divisors is an integer number (468000).

Almost surely, 2^3207421 is an apocalyptic number.

It is an amenable number.

3207421 is a deficient number, since it is larger than the sum of its proper divisors (536579).

3207421 is an equidigital number, since it uses as much as digits as its factorization.

3207421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9803.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 3207421 is about 1790.9274133811. The cubic root of 3207421 is about 147.4750853255.

The spelling of 3207421 in words is "three million, two hundred seven thousand, four hundred twenty-one".