3862686997 has 4 divisors (see below), whose sum is σ = 4159816780. Its totient is φ = 3565557216.

The previous prime is 3862686967. The next prime is 3862687001. The reversal of 3862686997 is 7996862683.

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

It can be written as a sum of positive squares in 2 ways, for example, as 875627281 + 2987059716 = 29591^2 + 54654^2 .

It is not a de Polignac number, because 3862686997 - 2¹¹ = 3862684949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3862686937) 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 3 ways as a sum of consecutive naturals, for example, 148564872 + ... + 148564897.

It is an arithmetic number, because the mean of its divisors is an integer number (1039954195).

Almost surely, 2^3862686997 is an apocalyptic number.

It is an amenable number.

3862686997 is a deficient number, since it is larger than the sum of its proper divisors (297129783).

3862686997 is a wasteful number, since it uses less digits than its factorization.

3862686997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297129782.

The product of its digits is 47029248, while the sum is 64.

The square root of 3862686997 is about 62150.5188795717. The cubic root of 3862686997 is about 1569.0249123938.

It can be divided in two parts, 3862686 and 997, that added together give a palindrome (3863683).

The spelling of 3862686997 in words is "three billion, eight hundred sixty-two million, six hundred eighty-six thousand, nine hundred ninety-seven".