3689203949 has 16 divisors (see below), whose sum is σ = 4089056256. Its totient is φ = 3312825600.

The previous prime is 3689203937. The next prime is 3689203961. The reversal of 3689203949 is 9493029863.

It is an interprime number because it is at equal distance from previous prime (3689203937) and next prime (3689203961).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3689203949 is a prime.

It is a super-2 number, since 2×3689203949² = 27220451554634389202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3689203949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689203919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11882 + ... + 86715.

It is an arithmetic number, because the mean of its divisors is an integer number (255566016).

Almost surely, 2^3689203949 is an apocalyptic number.

It is an amenable number.

3689203949 is a deficient number, since it is larger than the sum of its proper divisors (399852307).

3689203949 is a wasteful number, since it uses less digits than its factorization.

3689203949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98716.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The square root of 3689203949 is about 60738.8174810804. The cubic root of 3689203949 is about 1545.1745803148.

The spelling of 3689203949 in words is "three billion, six hundred eighty-nine million, two hundred three thousand, nine hundred forty-nine".