3421206 has 24 divisors (see below), whose sum is σ = 7519824. Its totient is φ = 1123920.

The previous prime is 3421193. The next prime is 3421219. The reversal of 3421206 is 6021243.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3421193) and next prime (3421219).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61 + ... + 2616.

It is an arithmetic number, because the mean of its divisors is an integer number (313326).

Almost surely, 2^3421206 is an apocalyptic number.

3421206 is an abundant number, since it is smaller than the sum of its proper divisors (4098618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3421206 is a wasteful number, since it uses less digits than its factorization.

3421206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756 (or 2753 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3421206 is about 1849.6502372070. The cubic root of 3421206 is about 150.6814329729.

Adding to 3421206 its reverse (6021243), we get a palindrome (9442449).

The spelling of 3421206 in words is "three million, four hundred twenty-one thousand, two hundred six".