3899697 has 4 divisors (see below), whose sum is σ = 5199600. Its totient is φ = 2599796.

The previous prime is 3899657. The next prime is 3899699. The reversal of 3899697 is 7969983.

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 3899697 - 2⁷ = 3899569 is a prime.

It is an Ulam number.

It is a D-number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (3899699) 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, 649947 + ... + 649952.

It is an arithmetic number, because the mean of its divisors is an integer number (1299900).

Almost surely, 2^3899697 is an apocalyptic number.

It is an amenable number.

3899697 is a deficient number, since it is larger than the sum of its proper divisors (1299903).

3899697 is a wasteful number, since it uses less digits than its factorization.

3899697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299902.

The product of its digits is 734832, while the sum is 51.

The square root of 3899697 is about 1974.7650493160. The cubic root of 3899697 is about 157.4020151434.

It can be divided in two parts, 38996 and 97, that added together give a palindrome (39093).

The spelling of 3899697 in words is "three million, eight hundred ninety-nine thousand, six hundred ninety-seven".