3912897 has 4 divisors (see below), whose sum is σ = 5217200. Its totient is φ = 2608596.

The previous prime is 3912893. The next prime is 3912899. The reversal of 3912897 is 7982193.

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 not a de Polignac number, because 3912897 - 2² = 3912893 is a prime.

It is a D-number.

It is a Duffinian number.

3912897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3912893) 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, 652147 + ... + 652152.

It is an arithmetic number, because the mean of its divisors is an integer number (1304300).

Almost surely, 2^3912897 is an apocalyptic number.

It is an amenable number.

3912897 is a deficient number, since it is larger than the sum of its proper divisors (1304303).

3912897 is a wasteful number, since it uses less digits than its factorization.

3912897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304302.

The product of its digits is 27216, while the sum is 39.

The square root of 3912897 is about 1978.1043956273. The cubic root of 3912897 is about 157.5794106981.

The spelling of 3912897 in words is "three million, nine hundred twelve thousand, eight hundred ninety-seven".