3978935 has 8 divisors (see below), whose sum is σ = 5055696. Its totient is φ = 2995840.

The previous prime is 3978917. The next prime is 3978967. The reversal of 3978935 is 5398793.

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

It is not a de Polignac number, because 3978935 - 2²⁰ = 2930359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23321 + ... + 23490.

It is an arithmetic number, because the mean of its divisors is an integer number (631962).

Almost surely, 2^3978935 is an apocalyptic number.

3978935 is a deficient number, since it is larger than the sum of its proper divisors (1076761).

3978935 is a wasteful number, since it uses less digits than its factorization.

3978935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46833.

The product of its digits is 204120, while the sum is 44.

The square root of 3978935 is about 1994.7267983361. The cubic root of 3978935 is about 158.4609595786.

It can be divided in two parts, 3978 and 935, that added together give a cube (4913 = 17³).

The spelling of 3978935 in words is "three million, nine hundred seventy-eight thousand, nine hundred thirty-five".