3907289 has 4 divisors (see below), whose sum is σ = 3913140. Its totient is φ = 3901440.

The previous prime is 3907283. The next prime is 3907291. The reversal of 3907289 is 9827093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9827093 = 31 ⋅317003.

It can be written as a sum of positive squares in 2 ways, for example, as 990025 + 2917264 = 995^2 + 1708^2 .

It is a cyclic number.

It is not a de Polignac number, because 3907289 - 2¹⁶ = 3841753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3907283) 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, 1772 + ... + 3309.

It is an arithmetic number, because the mean of its divisors is an integer number (978285).

Almost surely, 2^3907289 is an apocalyptic number.

It is an amenable number.

3907289 is a deficient number, since it is larger than the sum of its proper divisors (5851).

3907289 is an equidigital number, since it uses as much as digits as its factorization.

3907289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5850.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 3907289 is about 1976.6863686483. The cubic root of 3907289 is about 157.5040932841.

The spelling of 3907289 in words is "three million, nine hundred seven thousand, two hundred eighty-nine".