3231997 has 4 divisors (see below), whose sum is σ = 3245760. Its totient is φ = 3218236.

The previous prime is 3231979. The next prime is 3232003. The reversal of 3231997 is 7991323.

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: 7991323 = 83 ⋅96281.

It is a cyclic number.

It is not a de Polignac number, because 3231997 - 2⁷ = 3231869 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 (3231947) 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, 6523 + ... + 7000.

It is an arithmetic number, because the mean of its divisors is an integer number (811440).

Almost surely, 2^3231997 is an apocalyptic number.

It is an amenable number.

3231997 is a deficient number, since it is larger than the sum of its proper divisors (13763).

3231997 is a wasteful number, since it uses less digits than its factorization.

3231997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13762.

The product of its digits is 10206, while the sum is 34.

The square root of 3231997 is about 1797.7755699753. The cubic root of 3231997 is about 147.8507900883.

The spelling of 3231997 in words is "three million, two hundred thirty-one thousand, nine hundred ninety-seven".