3699887 has 4 divisors (see below), whose sum is σ = 3778656. Its totient is φ = 3621120.

The previous prime is 3699869. The next prime is 3699893. The reversal of 3699887 is 7889963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7889963 = 223 ⋅35381.

It is a cyclic number.

It is not a de Polignac number, because 3699887 - 2¹⁴ = 3683503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3699847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39314 + ... + 39407.

It is an arithmetic number, because the mean of its divisors is an integer number (944664).

Almost surely, 2^3699887 is an apocalyptic number.

3699887 is a deficient number, since it is larger than the sum of its proper divisors (78769).

3699887 is an equidigital number, since it uses as much as digits as its factorization.

3699887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78768.

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

The square root of 3699887 is about 1923.5090329915. The cubic root of 3699887 is about 154.6664628127. Note that the first 3 decimals are identical.

The spelling of 3699887 in words is "three million, six hundred ninety-nine thousand, eight hundred eighty-seven".