3698897 has 4 divisors (see below), whose sum is σ = 3789156. Its totient is φ = 3608640.

The previous prime is 3698881. The next prime is 3698909. The reversal of 3698897 is 7988963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7988963 = 17 ⋅469939.

It can be written as a sum of positive squares in 2 ways, for example, as 1628176 + 2070721 = 1276^2 + 1439^2 .

It is a cyclic number.

It is not a de Polignac number, because 3698897 - 2⁴ = 3698881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3698797) 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, 45068 + ... + 45149.

It is an arithmetic number, because the mean of its divisors is an integer number (947289).

Almost surely, 2^3698897 is an apocalyptic number.

It is an amenable number.

3698897 is a deficient number, since it is larger than the sum of its proper divisors (90259).

3698897 is an equidigital number, since it uses as much as digits as its factorization.

3698897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90258.

The product of its digits is 653184, while the sum is 50.

The square root of 3698897 is about 1923.2516735986. The cubic root of 3698897 is about 154.6526665844.

The spelling of 3698897 in words is "three million, six hundred ninety-eight thousand, eight hundred ninety-seven".