3213697 has 4 divisors (see below), whose sum is σ = 3402756. Its totient is φ = 3024640.

The previous prime is 3213689. The next prime is 3213737. The reversal of 3213697 is 7963123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1185921 + 2027776 = 1089^2 + 1424^2 .

It is not a de Polignac number, because 3213697 - 2³ = 3213689 is a prime.

It is a super-3 number, since 3×3213697³ = 99571726333891679619, which contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3243697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94504 + ... + 94537.

It is an arithmetic number, because the mean of its divisors is an integer number (850689).

Almost surely, 2^3213697 is an apocalyptic number.

It is an amenable number.

3213697 is a deficient number, since it is larger than the sum of its proper divisors (189059).

3213697 is a wasteful number, since it uses less digits than its factorization.

3213697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189058.

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

The square root of 3213697 is about 1792.6787219131. The cubic root of 3213697 is about 147.5712114249.

The spelling of 3213697 in words is "three million, two hundred thirteen thousand, six hundred ninety-seven".