3985707 has 8 divisors (see below), whose sum is σ = 5797440. Its totient is φ = 2415560.

The previous prime is 3985697. The next prime is 3985711. The reversal of 3985707 is 7075893.

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

It is a cyclic number.

It is not a de Polignac number, because 3985707 - 2⁸ = 3985451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3985717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60357 + ... + 60422.

It is an arithmetic number, because the mean of its divisors is an integer number (724680).

Almost surely, 2^3985707 is an apocalyptic number.

3985707 is a deficient number, since it is larger than the sum of its proper divisors (1811733).

3985707 is a wasteful number, since it uses less digits than its factorization.

3985707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120793.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 3985707 is about 1996.4235522554. The cubic root of 3985707 is about 158.5508068537.

It can be divided in two parts, 398 and 5707, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 3985707 in words is "three million, nine hundred eighty-five thousand, seven hundred seven".