3888739 has 4 divisors (see below), whose sum is σ = 3898440. Its totient is φ = 3879040.

The previous prime is 3888721. The next prime is 3888761. The reversal of 3888739 is 9378883.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3888739 - 2⁷ = 3888611 is a prime.

It is a Duffinian number.

3888739 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3888719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4222 + ... + 5059.

It is an arithmetic number, because the mean of its divisors is an integer number (974610).

Almost surely, 2^3888739 is an apocalyptic number.

3888739 is a deficient number, since it is larger than the sum of its proper divisors (9701).

3888739 is an equidigital number, since it uses as much as digits as its factorization.

3888739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9700.

The product of its digits is 290304, while the sum is 46.

The square root of 3888739 is about 1971.9885902307. The cubic root of 3888739 is about 157.2544456134.

The spelling of 3888739 in words is "three million, eight hundred eighty-eight thousand, seven hundred thirty-nine".