3997723758 has 32 divisors (see below), whose sum is σ = 9184057344. Its totient is φ = 1136406432.

The previous prime is 3997723753. The next prime is 3997723837. The reversal of 3997723758 is 8573277993.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997723753) 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 15 ways as a sum of consecutive naturals, for example, 233310 + ... + 249857.

It is an arithmetic number, because the mean of its divisors is an integer number (287001792).

Almost surely, 2^3997723758 is an apocalyptic number.

3997723758 is an abundant number, since it is smaller than the sum of its proper divisors (5186333586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3997723758 is a wasteful number, since it uses less digits than its factorization.

3997723758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483376.

The product of its digits is 20003760, while the sum is 60.

The square root of 3997723758 is about 63227.5553694748. Note that the first 3 decimals coincide. The cubic root of 3997723758 is about 1587.0998857549.

The spelling of 3997723758 in words is "three billion, nine hundred ninety-seven million, seven hundred twenty-three thousand, seven hundred fifty-eight".