3988793 has 8 divisors (see below), whose sum is σ = 4091016. Its totient is φ = 3888000.

The previous prime is 3988783. The next prime is 3988823. The reversal of 3988793 is 3978893.

It can be written as a sum of positive squares in 4 ways, for example, as 1530169 + 2458624 = 1237^2 + 1568^2 .

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 3988793 - 2¹⁰ = 3987769 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (3988703) 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, 7103 + ... + 7643.

It is an arithmetic number, because the mean of its divisors is an integer number (511377).

Almost surely, 2^3988793 is an apocalyptic number.

It is an amenable number.

3988793 is a deficient number, since it is larger than the sum of its proper divisors (102223).

3988793 is a wasteful number, since it uses less digits than its factorization.

3988793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715.

The product of its digits is 326592, while the sum is 47.

The square root of 3988793 is about 1997.1962847953. The cubic root of 3988793 is about 158.5917164978.

The spelling of 3988793 in words is "three million, nine hundred eighty-eight thousand, seven hundred ninety-three".