3215797 has 4 divisors (see below), whose sum is σ = 3463180. Its totient is φ = 2968416.

The previous prime is 3215789. The next prime is 3215809. The reversal of 3215797 is 7975123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7975123 = 13 ⋅613471.

It can be written as a sum of positive squares in 2 ways, for example, as 167281 + 3048516 = 409^2 + 1746^2 .

It is a cyclic number.

It is not a de Polignac number, because 3215797 - 2³ = 3215789 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 (3215747) 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, 123672 + ... + 123697.

It is an arithmetic number, because the mean of its divisors is an integer number (865795).

Almost surely, 2^3215797 is an apocalyptic number.

It is an amenable number.

3215797 is a deficient number, since it is larger than the sum of its proper divisors (247383).

3215797 is a wasteful number, since it uses less digits than its factorization.

3215797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247382.

The product of its digits is 13230, while the sum is 34.

The square root of 3215797 is about 1793.2643419195. The cubic root of 3215797 is about 147.6033480438.

The spelling of 3215797 in words is "three million, two hundred fifteen thousand, seven hundred ninety-seven".