3862749691 has 4 divisors (see below), whose sum is σ = 3878139384. Its totient is φ = 3847360000.

The previous prime is 3862749689. The next prime is 3862749721. The reversal of 3862749691 is 1969472683.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3862749691 - 2¹ = 3862749689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3862749991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7694470 + ... + 7694971.

It is an arithmetic number, because the mean of its divisors is an integer number (969534846).

Almost surely, 2^3862749691 is an apocalyptic number.

3862749691 is a deficient number, since it is larger than the sum of its proper divisors (15389693).

3862749691 is a wasteful number, since it uses less digits than its factorization.

3862749691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15389692.

The product of its digits is 3919104, while the sum is 55.

The square root of 3862749691 is about 62151.0232498227. The cubic root of 3862749691 is about 1569.0334011234.

The spelling of 3862749691 in words is "three billion, eight hundred sixty-two million, seven hundred forty-nine thousand, six hundred ninety-one".