3989707 has 4 divisors (see below), whose sum is σ = 4030936. Its totient is φ = 3948480.

The previous prime is 3989701. The next prime is 3989723. The reversal of 3989707 is 7079893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7079893 = 2383 ⋅2971.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3989707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3989701) 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, 20469 + ... + 20662.

It is an arithmetic number, because the mean of its divisors is an integer number (1007734).

Almost surely, 2^3989707 is an apocalyptic number.

3989707 is a deficient number, since it is larger than the sum of its proper divisors (41229).

3989707 is an equidigital number, since it uses as much as digits as its factorization.

3989707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41228.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 3989707 is about 1997.4250924628. The cubic root of 3989707 is about 158.6038289137.

The spelling of 3989707 in words is "three million, nine hundred eighty-nine thousand, seven hundred seven".