3940787 has 8 divisors (see below), whose sum is σ = 4244400. Its totient is φ = 3645184.

The previous prime is 3940777. The next prime is 3940793. The reversal of 3940787 is 7870493.

3940787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3940787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3940787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (530550).

Almost surely, 2^3940787 is an apocalyptic number.

3940787 is a deficient number, since it is larger than the sum of its proper divisors (303613).

3940787 is a wasteful number, since it uses less digits than its factorization.

3940787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 3940787 is about 1985.1415566654. The cubic root of 3940787 is about 157.9529181941.

The spelling of 3940787 in words is "three million, nine hundred forty thousand, seven hundred eighty-seven".