3698869 has 4 divisors (see below), whose sum is σ = 3754144. Its totient is φ = 3643596.

The previous prime is 3698861. The next prime is 3698873. The reversal of 3698869 is 9688963.

3698869 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9688963 = 17 ⋅569939.

It is a cyclic number.

It is not a de Polignac number, because 3698869 - 2³ = 3698861 is a prime.

It is a super-2 number, since 2×3698869² = 27363263758322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3698861) 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, 27537 + ... + 27670.

It is an arithmetic number, because the mean of its divisors is an integer number (938536).

Almost surely, 2^3698869 is an apocalyptic number.

It is an amenable number.

3698869 is a deficient number, since it is larger than the sum of its proper divisors (55275).

3698869 is an equidigital number, since it uses as much as digits as its factorization.

3698869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55274.

The product of its digits is 559872, while the sum is 49.

The square root of 3698869 is about 1923.2443942463. The cubic root of 3698869 is about 154.6522763522.

The spelling of 3698869 in words is "three million, six hundred ninety-eight thousand, eight hundred sixty-nine".