3219997 has 4 divisors (see below), whose sum is σ = 3512736. Its totient is φ = 2927260.

The previous prime is 3219989. The next prime is 3220003. The reversal of 3219997 is 7999123.

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 not a de Polignac number, because 3219997 - 2³ = 3219989 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 (3219917) 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, 146353 + ... + 146374.

It is an arithmetic number, because the mean of its divisors is an integer number (878184).

Almost surely, 2^3219997 is an apocalyptic number.

It is an amenable number.

3219997 is a deficient number, since it is larger than the sum of its proper divisors (292739).

3219997 is a wasteful number, since it uses less digits than its factorization.

3219997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292738.

The product of its digits is 30618, while the sum is 40.

The square root of 3219997 is about 1794.4350085751. The cubic root of 3219997 is about 147.6675793338.

The spelling of 3219997 in words is "three million, two hundred nineteen thousand, nine hundred ninety-seven".