3786703749 has 14 divisors (see below), whose sum is σ = 5677459526. Its totient is φ = 2524468680.

The previous prime is 3786703741. The next prime is 3786703757. The reversal of 3786703749 is 9473076873.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3786703741) and next prime (3786703757).

It can be written as a sum of positive squares in only one way, i.e., 3184344900 + 602358849 = 56430^2 + 24543^2 .

It is not a de Polignac number, because 3786703749 - 2³ = 3786703741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3786703695 and 3786703704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3786703741) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2596462 + ... + 2597919.

Almost surely, 2^3786703749 is an apocalyptic number.

It is an amenable number.

3786703749 is a deficient number, since it is larger than the sum of its proper divisors (1890755777).

3786703749 is an frugal number, since it uses more digits than its factorization.

3786703749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194399 (or 5194384 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The square root of 3786703749 is about 61536.1986882518. The cubic root of 3786703749 is about 1558.6685644076.

The spelling of 3786703749 in words is "three billion, seven hundred eighty-six million, seven hundred three thousand, seven hundred forty-nine".