3219861 has 8 divisors (see below), whose sum is σ = 4301440. Its totient is φ = 2142432.

The previous prime is 3219859. The next prime is 3219863. The reversal of 3219861 is 1689123.

It is an interprime number because it is at equal distance from previous prime (3219859) and next prime (3219863).

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

It is not a de Polignac number, because 3219861 - 2¹ = 3219859 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 (3219863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2580 + ... + 3618.

It is an arithmetic number, because the mean of its divisors is an integer number (537680).

Almost surely, 2^3219861 is an apocalyptic number.

It is an amenable number.

3219861 is a deficient number, since it is larger than the sum of its proper divisors (1081579).

3219861 is a wasteful number, since it uses less digits than its factorization.

3219861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075.

The product of its digits is 2592, while the sum is 30.

The square root of 3219861 is about 1794.3971132389. The cubic root of 3219861 is about 147.6655003387.

The spelling of 3219861 in words is "three million, two hundred nineteen thousand, eight hundred sixty-one".