3698971 has 4 divisors (see below), whose sum is σ = 3704344. Its totient is φ = 3693600.

The previous prime is 3698969. The next prime is 3698999. The reversal of 3698971 is 1798963.

3698971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3698971 - 2¹ = 3698969 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3698941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1470 + ... + 3091.

It is an arithmetic number, because the mean of its divisors is an integer number (926086).

Almost surely, 2^3698971 is an apocalyptic number.

3698971 is a deficient number, since it is larger than the sum of its proper divisors (5373).

3698971 is an equidigital number, since it uses as much as digits as its factorization.

3698971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372.

The product of its digits is 81648, while the sum is 43.

The square root of 3698971 is about 1923.2709117542. The cubic root of 3698971 is about 154.6536979027.

The spelling of 3698971 in words is "three million, six hundred ninety-eight thousand, nine hundred seventy-one".