3689787 has 8 divisors (see below), whose sum is σ = 5034304. Its totient is φ = 2402568.

The previous prime is 3689779. The next prime is 3689797. The reversal of 3689787 is 7879863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3689787 - 2³ = 3689779 is a prime.

It is a super-2 number, since 2×3689787² = 27229056210738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3689717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14173 + ... + 14430.

It is an arithmetic number, because the mean of its divisors is an integer number (629288).

Almost surely, 2^3689787 is an apocalyptic number.

3689787 is a deficient number, since it is larger than the sum of its proper divisors (1344517).

3689787 is a wasteful number, since it uses less digits than its factorization.

3689787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28649.

The product of its digits is 508032, while the sum is 48.

The square root of 3689787 is about 1920.8818287443. The cubic root of 3689787 is about 154.5255977109.

The spelling of 3689787 in words is "three million, six hundred eighty-nine thousand, seven hundred eighty-seven".