3897617 has 4 divisors (see below), whose sum is σ = 4002996. Its totient is φ = 3792240.

The previous prime is 3897611. The next prime is 3897631. The reversal of 3897617 is 7167983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7167983 = 467 ⋅15349.

It can be written as a sum of positive squares in 2 ways, for example, as 1324801 + 2572816 = 1151^2 + 1604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3897617 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (3897611) 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, 52634 + ... + 52707.

It is an arithmetic number, because the mean of its divisors is an integer number (1000749).

Almost surely, 2^3897617 is an apocalyptic number.

3897617 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3897617 is a deficient number, since it is larger than the sum of its proper divisors (105379).

3897617 is a wasteful number, since it uses less digits than its factorization.

3897617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105378.

The product of its digits is 63504, while the sum is 41.

The square root of 3897617 is about 1974.2383341431. The cubic root of 3897617 is about 157.3740254118.

The spelling of 3897617 in words is "three million, eight hundred ninety-seven thousand, six hundred seventeen".