3976693393 has 4 divisors (see below), whose sum is σ = 3981334500. Its totient is φ = 3972052288.

The previous prime is 3976693387. The next prime is 3976693447. The reversal of 3976693393 is 3933966793.

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 3143620624 + 833072769 = 56068^2 + 28863^2 .

It is a cyclic number.

It is not a de Polignac number, because 3976693393 - 2¹³ = 3976685201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3976693093) 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, 2319268 + ... + 2320981.

It is an arithmetic number, because the mean of its divisors is an integer number (995333625).

Almost surely, 2^3976693393 is an apocalyptic number.

It is an amenable number.

3976693393 is a deficient number, since it is larger than the sum of its proper divisors (4641107).

3976693393 is an equidigital number, since it uses as much as digits as its factorization.

3976693393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641106.

The product of its digits is 14880348, while the sum is 58.

The square root of 3976693393 is about 63061.0291146600. The cubic root of 3976693393 is about 1584.3119667967.

The spelling of 3976693393 in words is "three billion, nine hundred seventy-six million, six hundred ninety-three thousand, three hundred ninety-three".