3940843607 has 4 divisors (see below), whose sum is σ = 3994827840. Its totient is φ = 3886859376.

The previous prime is 3940843603. The next prime is 3940843609. The reversal of 3940843607 is 7063480493.

It is a happy number.

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 3940843607 - 2² = 3940843603 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 (3940843601) 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, 26992007 + ... + 26992152.

It is an arithmetic number, because the mean of its divisors is an integer number (998706960).

Almost surely, 2^3940843607 is an apocalyptic number.

3940843607 is a deficient number, since it is larger than the sum of its proper divisors (53984233).

3940843607 is an equidigital number, since it uses as much as digits as its factorization.

3940843607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53984232.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 3940843607 is about 62776.1388347515. The cubic root of 3940843607 is about 1579.5367448954.

The spelling of 3940843607 in words is "three billion, nine hundred forty million, eight hundred forty-three thousand, six hundred seven".