3889899723 has 32 divisors (see below), whose sum is σ = 5437071360. Its totient is φ = 2471639040.

The previous prime is 3889899707. The next prime is 3889899737. The reversal of 3889899723 is 3279989883.

It is not a de Polignac number, because 3889899723 - 2⁴ = 3889899707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3889899703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940486 + ... + 944612.

It is an arithmetic number, because the mean of its divisors is an integer number (169908480).

Almost surely, 2^3889899723 is an apocalyptic number.

3889899723 is a deficient number, since it is larger than the sum of its proper divisors (1547171637).

3889899723 is a wasteful number, since it uses less digits than its factorization.

3889899723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4347.

The product of its digits is 47029248, while the sum is 66.

The square root of 3889899723 is about 62369.0606230365. The cubic root of 3889899723 is about 1572.7008999020.

The spelling of 3889899723 in words is "three billion, eight hundred eighty-nine million, eight hundred ninety-nine thousand, seven hundred twenty-three".