3867279997 has 16 divisors (see below), whose sum is σ = 4580878720. Its totient is φ = 3195609408.

The previous prime is 3867279967. The next prime is 3867280009. The reversal of 3867279997 is 7999727683.

It is a cyclic number.

It is not a de Polignac number, because 3867279997 - 2¹¹ = 3867277949 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 (3867279907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40263 + ... + 96724.

It is an arithmetic number, because the mean of its divisors is an integer number (286304920).

Almost surely, 2^3867279997 is an apocalyptic number.

3867279997 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3867279997 is a deficient number, since it is larger than the sum of its proper divisors (713598723).

3867279997 is a wasteful number, since it uses less digits than its factorization.

3867279997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137140.

The product of its digits is 72013536, while the sum is 67.

The square root of 3867279997 is about 62187.4585185791. The cubic root of 3867279997 is about 1569.6465588419.

The spelling of 3867279997 in words is "three billion, eight hundred sixty-seven million, two hundred seventy-nine thousand, nine hundred ninety-seven".