3689139 has 16 divisors (see below), whose sum is σ = 5110560. Its totient is φ = 2365440.

The previous prime is 3689137. The next prime is 3689141. The reversal of 3689139 is 9319863.

3689139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3689137) and next prime (3689141).

It is not a de Polignac number, because 3689139 - 2¹ = 3689137 is a prime.

It is a super-2 number, since 2×3689139² = 27219493122642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3689097 and 3689106.

It is not an unprimeable number, because it can be changed into a prime (3689137) 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 15 ways as a sum of consecutive naturals, for example, 10779 + ... + 11115.

It is an arithmetic number, because the mean of its divisors is an integer number (319410).

Almost surely, 2^3689139 is an apocalyptic number.

3689139 is a deficient number, since it is larger than the sum of its proper divisors (1421421).

3689139 is a wasteful number, since it uses less digits than its factorization.

3689139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470.

The product of its digits is 34992, while the sum is 39.

The square root of 3689139 is about 1920.7131488070. The cubic root of 3689139 is about 154.5165512583.

It can be divided in two parts, 3689 and 139, that added together give a triangular number (3828 = T₈₇).

The spelling of 3689139 in words is "three million, six hundred eighty-nine thousand, one hundred thirty-nine".