3813428723 has 6 divisors (see below), whose sum is σ = 4129334244. Its totient is φ = 3520087896.

The previous prime is 3813428719. The next prime is 3813428743. The reversal of 3813428723 is 3278243183.

It is not a de Polignac number, because 3813428723 - 2² = 3813428719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3813428713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11282165 + ... + 11282502.

It is an arithmetic number, because the mean of its divisors is an integer number (688222374).

Almost surely, 2^3813428723 is an apocalyptic number.

3813428723 is a deficient number, since it is larger than the sum of its proper divisors (315905521).

3813428723 is a wasteful number, since it uses less digits than its factorization.

3813428723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22564693 (or 22564680 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 3813428723 is about 61752.9652972228. The cubic root of 3813428723 is about 1562.3267824449.

The spelling of 3813428723 in words is "three billion, eight hundred thirteen million, four hundred twenty-eight thousand, seven hundred twenty-three".