3216973 has 4 divisors (see below), whose sum is σ = 3223648. Its totient is φ = 3210300.

The previous prime is 3216949. The next prime is 3216977. The reversal of 3216973 is 3796123.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3796123 = 661 ⋅5743.

It is a cyclic number.

It is not a de Polignac number, because 3216973 - 2¹³ = 3208781 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 (3216977) 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, 2553 + ... + 3598.

It is an arithmetic number, because the mean of its divisors is an integer number (805912).

Almost surely, 2^3216973 is an apocalyptic number.

It is an amenable number.

3216973 is a deficient number, since it is larger than the sum of its proper divisors (6675).

3216973 is an equidigital number, since it uses as much as digits as its factorization.

3216973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6674.

The product of its digits is 6804, while the sum is 31.

The square root of 3216973 is about 1793.5922056030. The cubic root of 3216973 is about 147.6213384396.

The spelling of 3216973 in words is "three million, two hundred sixteen thousand, nine hundred seventy-three".