3909697 has 4 divisors (see below), whose sum is σ = 4265136. Its totient is φ = 3554260.

The previous prime is 3909691. The next prime is 3909707. The reversal of 3909697 is 7969093.

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 a cyclic number.

It is not a de Polignac number, because 3909697 - 2¹¹ = 3907649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3909691) 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, 177703 + ... + 177724.

It is an arithmetic number, because the mean of its divisors is an integer number (1066284).

Almost surely, 2^3909697 is an apocalyptic number.

It is an amenable number.

3909697 is a deficient number, since it is larger than the sum of its proper divisors (355439).

3909697 is a wasteful number, since it uses less digits than its factorization.

3909697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355438.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 3909697 is about 1977.2953750009. The cubic root of 3909697 is about 157.5364423945.

It can be divided in two parts, 39096 and 97, that added together give a palindrome (39193).

The spelling of 3909697 in words is "three million, nine hundred nine thousand, six hundred ninety-seven".