3925780823 has 4 divisors (see below), whose sum is σ = 3925919160. Its totient is φ = 3925642488.

The previous prime is 3925780813. The next prime is 3925780853. The reversal of 3925780823 is 3280875293.

3925780823 is digitally balanced in base 3, 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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3925780823 - 2³⁰ = 2852038999 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 (3925780813) 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, 9365 + ... + 89102.

It is an arithmetic number, because the mean of its divisors is an integer number (981479790).

Almost surely, 2^3925780823 is an apocalyptic number.

3925780823 is a deficient number, since it is larger than the sum of its proper divisors (138337).

3925780823 is an equidigital number, since it uses as much as digits as its factorization.

3925780823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138336.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 3925780823 is about 62656.0517667687. The cubic root of 3925780823 is about 1577.5217280803.

The spelling of 3925780823 in words is "three billion, nine hundred twenty-five million, seven hundred eighty thousand, eight hundred twenty-three".