3937822913 has 4 divisors (see below), whose sum is σ = 4073609940. Its totient is φ = 3802035888.

The previous prime is 3937822907. The next prime is 3937822937. The reversal of 3937822913 is 3192287393.

3937822913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3192287393 = 5407 ⋅590399.

It can be written as a sum of positive squares in 2 ways, for example, as 2070978064 + 1866844849 = 45508^2 + 43207^2 .

It is a cyclic number.

It is not a de Polignac number, because 3937822913 - 2⁶ = 3937822849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3937822963) 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, 67893470 + ... + 67893527.

It is an arithmetic number, because the mean of its divisors is an integer number (1018402485).

Almost surely, 2^3937822913 is an apocalyptic number.

It is an amenable number.

3937822913 is a deficient number, since it is larger than the sum of its proper divisors (135787027).

3937822913 is a wasteful number, since it uses less digits than its factorization.

3937822913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135787026.

The product of its digits is 489888, while the sum is 47.

The square root of 3937822913 is about 62752.0749696773. The cubic root of 3937822913 is about 1579.1330651045.

The spelling of 3937822913 in words is "three billion, nine hundred thirty-seven million, eight hundred twenty-two thousand, nine hundred thirteen".