3387972779 has 4 divisors (see below), whose sum is σ = 3419636184. Its totient is φ = 3356309376.

The previous prime is 3387972739. The next prime is 3387972781. The reversal of 3387972779 is 9772797833.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3387972779 is a prime.

It is a super-2 number, since 2×3387972779² = 22956719102489965682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3387972739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15831542 + ... + 15831755.

It is an arithmetic number, because the mean of its divisors is an integer number (854909046).

Almost surely, 2^3387972779 is an apocalyptic number.

3387972779 is a deficient number, since it is larger than the sum of its proper divisors (31663405).

3387972779 is a wasteful number, since it uses less digits than its factorization.

3387972779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31663404.

The product of its digits is 28005264, while the sum is 62.

The square root of 3387972779 is about 58206.2950117940. The cubic root of 3387972779 is about 1501.9194359812.

The spelling of 3387972779 in words is "three billion, three hundred eighty-seven million, nine hundred seventy-two thousand, seven hundred seventy-nine".