3990713 has 4 divisors (see below), whose sum is σ = 4003620. Its totient is φ = 3977808.

The previous prime is 3990689. The next prime is 3990731. The reversal of 3990713 is 3170993.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 273529 + 3717184 = 523^2 + 1928^2 .

It is a cyclic number.

It is not a de Polignac number, because 3990713 - 2¹² = 3986617 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 3990713.

It is not an unprimeable number, because it can be changed into a prime (3990773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5978 + ... + 6611.

It is an arithmetic number, because the mean of its divisors is an integer number (1000905).

Almost surely, 2^3990713 is an apocalyptic number.

It is an amenable number.

3990713 is a deficient number, since it is larger than the sum of its proper divisors (12907).

3990713 is a wasteful number, since it uses less digits than its factorization.

3990713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12906.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 3990713 is about 1997.6769008025. The cubic root of 3990713 is about 158.6171583840.

The spelling of 3990713 in words is "three million, nine hundred ninety thousand, seven hundred thirteen".