4139693 has 4 divisors (see below), whose sum is σ = 4149948. Its totient is φ = 4129440.

The previous prime is 4139677. The next prime is 4139699. The reversal of 4139693 is 3969314.

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

It can be written as a sum of positive squares in 2 ways, for example, as 743044 + 3396649 = 862^2 + 1843^2 .

It is a cyclic number.

It is not a de Polignac number, because 4139693 - 2⁴ = 4139677 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 (4139699) 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, 4496 + ... + 5337.

It is an arithmetic number, because the mean of its divisors is an integer number (1037487).

Almost surely, 2^4139693 is an apocalyptic number.

It is an amenable number.

4139693 is a deficient number, since it is larger than the sum of its proper divisors (10255).

4139693 is an equidigital number, since it uses as much as digits as its factorization.

4139693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10254.

The product of its digits is 17496, while the sum is 35.

The square root of 4139693 is about 2034.6235524047. The cubic root of 4139693 is about 160.5669082425.

The spelling of 4139693 in words is "four million, one hundred thirty-nine thousand, six hundred ninety-three".