3907139 has 4 divisors (see below), whose sum is σ = 3912720. Its totient is φ = 3901560.

The previous prime is 3907133. The next prime is 3907153. The reversal of 3907139 is 9317093.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9317093 = 23 ⋅405091.

It is a cyclic number.

It is not a de Polignac number, because 3907139 - 2⁸ = 3906883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3907133) 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, 1559 + ... + 3200.

It is an arithmetic number, because the mean of its divisors is an integer number (978180).

Almost surely, 2^3907139 is an apocalyptic number.

3907139 is a deficient number, since it is larger than the sum of its proper divisors (5581).

3907139 is an equidigital number, since it uses as much as digits as its factorization.

3907139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 3907139 is about 1976.6484259979. The cubic root of 3907139 is about 157.5020777420.

The spelling of 3907139 in words is "three million, nine hundred seven thousand, one hundred thirty-nine".