3978703 has 4 divisors (see below), whose sum is σ = 3982720. Its totient is φ = 3974688.

The previous prime is 3978683. The next prime is 3978707. The reversal of 3978703 is 3078793.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3078793 = 449 ⋅6857.

It is a cyclic number.

It is not a de Polignac number, because 3978703 - 2⁵ = 3978671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978707) 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, 658 + ... + 2896.

It is an arithmetic number, because the mean of its divisors is an integer number (995680).

Almost surely, 2^3978703 is an apocalyptic number.

3978703 is a deficient number, since it is larger than the sum of its proper divisors (4017).

3978703 is a wasteful number, since it uses less digits than its factorization.

3978703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 3978703 is about 1994.6686441612. The cubic root of 3978703 is about 158.4578797213.

The spelling of 3978703 in words is "three million, nine hundred seventy-eight thousand, seven hundred three".